WO2014110818A1

WO2014110818A1 - Network migration method and device

Info

Publication number: WO2014110818A1
Application number: PCT/CN2013/070732
Authority: WO
Inventors: 赵君辉; 张宏卓; 曾清海; 钟涛
Original assignee: 华为技术有限公司
Priority date: 2013-01-18
Filing date: 2013-01-18
Publication date: 2014-07-24
Also published as: CN104247514A; CN104247514B

Abstract

The present invention relates to the field of communications. Disclosed are a network migration method and device, for solving the problems that the service quality of a user terminal cannot be ensured and the resource utilization of a communication network is low when the user terminal migrates from a cellular network to a wireless local area network (WLAN). The method provided by the present invention comprises: a base station sending notification information to a user terminal, wherein the notification information is used for instructing the user terminal to migrate from a cellular network to a WLAN, and the base station belongs to the cellular network. The present invention is applicable to the field of communications, and is used for instructing a user terminal to migrate from a cellular network migration to a WLAN.

Description

Network migration method and device

The present invention relates to the field of communications, and in particular, to a network migration method and apparatus. Background technique

WLAN (Wireless Local Area Networks) is a wireless area network based on the IEEE 802.11 series of standards. Due to its high transmission rate and convenient network deployment, WLAN has been widely used. At the same time, supporting WLAN communication has gradually become a necessary function of intelligent terminals. With the popularization of intelligent terminals, the cellular network in the mobile communication system needs to bear a large load due to the fast processing speed of the intelligent terminal and the high transmission rate of the service data. Since the capacity of a cellular network is limited, it will cause a great pressure on the cellular network.

In order to alleviate the pressure on the cellular network, the communication operator can deploy an WLAN AP (Access Point) in the cell, provide a WLAN network to the intelligent terminal in the cell, and transfer part of the traffic of the cellular network to the WLAN network. Processing is performed to reduce the traffic of the cellular network. For example, when the user terminal performs the online video service, it can migrate from the currently affiliated cellular network to the WLAN.

Currently, there is a lack of an effective mechanism to ensure a reasonable migration of the UE between the cellular network and the WLAN network. In the prior art, when the user terminal migrates from the cellular network to the WLAN network, only the service type to be executed by the user terminal is used as a basis for determining; if the current cellular network has a small load and a large WLAN load, the user terminal still has a May migrate from cellular network to WLAN network, not Only the quality of the service of the user terminal cannot be guaranteed, and the resource utilization of the communication network is also low. On the other hand, in the process of the UE migrating from the cellular network to the WLAN network, in order to obtain the access point information of the available WLAN in real time, the UE needs to keep the WLAN access module in an open state for a long time, which causes the power consumption of the UE to be large. Summary of the invention

The embodiment of the present invention provides a network migration method and device, which can solve the problem that the service quality of the user terminal cannot be guaranteed when the user terminal migrates from the cellular network to the WLAN network in the prior art, and the resource utilization ratio of the communication network is also improved. Low problem.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a network migration method, where the method includes:

The base station sends notification information to the user terminal, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The base station belongs to the cellular network.

In a first possible implementation, the method further includes: acquiring load information of a current cell to which the user terminal belongs and/or load information of an available access point, where the available access point is detected by the user terminal An access point of an available wireless local area network; wherein the current cell is served by the base station, and the notification information is specifically used to indicate that the user terminal migrates from the base station of the cellular network to the wireless local area network The available access point. With reference to the first aspect, in a second possible implementation manner, the method further includes: receiving, by the user terminal, access point information, where the access point information includes: The access point identifier of the wireless local area network may be used, or the access point information includes one or more access point identifiers in the available wireless local area network provided by the user terminal.

Optionally, the access point information further includes a signal quality of the access point corresponding to the access point identifier of the available wireless local area network detected by the user terminal, or

The access point information further includes a signal quality of an access point corresponding to one or more access point identifiers in the available wireless local area network provided by the user terminal.

With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner, before the sending the notification information to the user terminal The method further includes: receiving request information of the access wireless local area network sent by the user terminal, where the request information of the access wireless local area network is used to request that the user terminal be migrated from the cellular network to the wireless local area network.

With reference to the first aspect, in a fourth possible implementation, the method further includes: adding an identifier of the target access point to the notification information, so that the user terminal accesses the information according to the notification information. The access point corresponding to the identifier of the target access point;

The access point belongs to the wireless local area network.

With the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a fifth possible implementation, the method further includes: acquiring the access point information Load information and/or signal quality of each access point, based on the load information and/or signal quality

- 3 - Determining priority information of the available access point; broadcasting the priority information in a system message, so that the user terminal migrates to the wireless local area network according to the priority information.

With the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a sixth possible implementation, the method further includes: acquiring the access point information The load information and/or the signal quality of each access point, the access points are sorted according to the load information and/or the signal quality, to obtain the sorting information; and the sorting information is sent to the user terminal, so as to facilitate The user terminal migrates to the wireless local area network according to the sorting information.

In a second aspect, the present invention further provides a network migration method, where the method includes: receiving, by a user terminal, notification information sent by a base station, where the notification information is used to indicate that the user terminal migrates from a cellular network to a wireless local area network;

Transmitting, by the user terminal, the cellular network to the wireless local area network according to the notification information;

The base station belongs to the cellular network.

In a first possible implementation manner, the method further includes: acquiring access point information of an available wireless local area network, and sending the access point information to the base station;

The access point information includes an access point identifier of the available wireless local area network; or the access point information includes one or more access point identifiers in the available wireless local area network. Optionally, the access point information further includes: a signal quality of the access point corresponding to the access point identifier of the available wireless local area network, and/or a load information of the access point corresponding to the access point identifier, or The access point information further includes one or more access point identification pairs of the available wireless local area network

- 4 - The signal quality of the access point, and/or the load information of the access point corresponding to the access point identifier. With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, before the acquiring the access point information of the available wireless local area network, the method further includes: detecting an access point of the available wireless local area network.

With the second possible implementation of the second aspect, in a third possible implementation manner, the detecting, by the user terminal, the preset service, when the user terminal initiates a preset service, Detecting an access point of the available wireless local area network, where the preset service is a service specified by the protocol, or a service specified by the base station, or a service specified by the user terminal application layer.

With reference to the first possible implementation manner of the second aspect, in a fourth possible implementation, the method further includes: storing access point information of the first access point, where the first access point is An access point of a wireless local area network accessed by the user terminal; storing a cell identifier of the detected cellular network cell within the coverage of the first access point, and establishing the first access point and the cell identifier Mapping relations;

The obtaining the access point information of the available wireless local area network includes:

Obtaining a cell identifier of the current cell to which the user terminal belongs, and searching for an access point identifier of the first access point corresponding to the cell identifier of the current cell according to the mapping relationship, and determining access point information of the available wireless local area network.

With the first possible implementation of the second aspect, in a fifth possible implementation, the sending the access point information to the base station includes: when the user terminal initiates a preset Transmitting the access point information to the base station, where the preset service is specified by a protocol The service, or the service specified by the base station in advance, or the service specified by the user terminal application layer. With the first possible implementation of the second aspect, in a sixth possible implementation, the method further includes: connecting the available wireless local area network according to signal quality and/or load information of each access point The in points are sorted to obtain sorting information, and the sorting information is sent to the base station.

With reference to the second aspect, in a seventh possible implementation, the notification information includes an identifier of the target access point;

The migrating from the cellular network to the WLAN according to the notification information includes: accessing the target access point according to the identifier of the target access point in the notification information, and migrating from the cellular network to the target The wireless local area network corresponding to the access point.

In a third aspect, the present invention further provides a base station, where the base station includes:

a sending unit, configured to send, to the user terminal, the notification information, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The base station belongs to the cellular network.

In a first possible implementation manner, the base station further includes: an acquiring unit, configured to acquire load information of a current cell to which the user terminal belongs and/or load information of an available access point, where the available access point is Describe an access point of an available wireless local area network detected by the user terminal;

The current cell is served by the base station, and the notification information is specifically used to indicate that the user terminal migrates from the base station of the cellular network to the available access point of the wireless local area network.

In combination with the third party, in a second possible implementation manner, the base station further includes: a receiving unit,

- 6 - For receiving the access point information sent by the user terminal, the access point information includes: an access point identifier of the available wireless local area network detected by the user terminal, or the access point information includes the One or more access point identifiers in the available wireless local area network provided by the user terminal;

Optionally, the access point information received by the receiving unit further includes a signal quality of the access point corresponding to the access point identifier of the available wireless local area network detected by the user terminal, or

The access point information received by the receiving unit further includes a signal quality of an access point corresponding to one or more access point identifiers of the available wireless local area network provided by the user terminal.

With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner, the sending unit is further configured to An identifier of the target access point is added to the information, so that the user terminal accesses the access point corresponding to the identifier of the target access point according to the notification information;

The access point belongs to the wireless local area network.

With reference to the third aspect or the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, in a fourth possible implementation manner The sending unit is specifically configured to: when the user terminal is configured to initiate a preset service, send the notification information to the user terminal, where the preset service is a service specified by a protocol, or a base station pre-designates The service, or the service specified in the user subscription information, or the service specified in the context of the user terminal.

In a fourth aspect, the present invention further provides a user terminal, where the user terminal includes: a receiving unit, configured to receive notification information sent by a base station, where the notification information is used to indicate the The user terminal migrates from the cellular network to the wireless local area network;

a processing unit, configured to migrate from the cellular network to the wireless local area network according to the notification information received by the receiving unit;

The base station belongs to the cellular network.

In a first possible implementation manner, the user terminal further includes:

An obtaining unit, configured to obtain access point information of an available wireless local area network;

a sending unit, configured to send the access point information acquired by the acquiring unit to the base station, where the access point information includes an access point identifier of the available wireless local area network; or the access point information includes The one or more access point identifiers in the available wireless local area network are optional, and the access point information acquired by the acquiring unit further includes the signal quality of the access point corresponding to the access point identifier of the available wireless local area network, And/or the access point identifies the load information of the corresponding access point, or

The access point information acquired by the acquiring unit further includes: the signal quality of the access point corresponding to the one or more access points of the available wireless local area network, and/or the access point corresponding to the access point identifier. Load information.

With reference to the second possible implementation of the fourth aspect, in a third possible implementation, the user terminal further includes: a detecting unit, configured to detect an access point of the available wireless local area network; The detecting unit is configured to: when detecting that the user terminal initiates a preset service, detecting an access point of the available wireless local area network, where the preset service is a service specified by a protocol, or a service specified by a base station, or a user terminal The business specified by the application layer.

- 8 - With reference to the second possible implementation of the fourth aspect, in a fourth possible implementation, the user terminal further includes:

a storage unit, configured to store access point information of the first access point, where the first access point is an access point of a wireless local area network accessed by the user terminal;

The storage unit is further configured to store a cell identifier of the detected cellular network cell in the coverage of the first access point, and a mapping relationship between the first access point and the cell identifier;

The acquiring unit is specifically configured to acquire a cell identifier of a current cell to which the user terminal belongs, and search for an access point identifier of the first access point corresponding to the cell identifier of the current cell according to the mapping relationship stored by the storage unit, and determine The access point information of the available wireless local area network.

With reference to the fourth aspect, in a fifth possible implementation manner, the notification information received by the receiving unit includes an identifier of the target access point;

The processing unit is configured to access the target access point according to the identifier of the target access point in the notification information, and migrate from the cellular network to the wireless local area network corresponding to the target access point. Network.

With reference to the fourth aspect, in a sixth possible implementation, the receiving unit is further configured to receive priority information of a wireless local area network access point that is broadcast by the base station, where the processing unit is specifically configured to use the priority Information to select an access point for access; or

The receiving unit is further configured to receive the sorting information sent by the base station; the processing unit is specifically configured to select, according to the sorting information, a wireless local area network access point to perform access.

In a fifth aspect, the present invention further provides a base station, where the base station includes:

- 9 - And a transmitter, configured to send notification information to the user terminal, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network.

In a first possible implementation manner, the base station further includes: a processor, configured to acquire load information of a current cellular network cell to which the user terminal belongs, and/or load information of an available access point, where the available access point It is an access point of the available wireless local area network detected by the user terminal.

With reference to the fifth aspect, in a second possible implementation, the base station further includes: a receiver, configured to receive access point information sent by the user terminal, where the access point information includes: the user terminal The detected access point identifier of the available wireless local area network, or one or more access point identifiers of the available wireless local area network provided by the user terminal.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, in a third possible implementation manner, the transmitter is further used in the notification The identifier of the target access point is added to the information, so that the user terminal accesses the access point corresponding to the identifier of the target access point after receiving the notification information.

In a sixth aspect, the present invention further provides a user terminal, where the user terminal includes: a receiver, configured to receive notification information sent by a base station, where the notification information is used to indicate that the user terminal migrates from a cellular network to a wireless local area network. ;

a processor, configured to migrate from a cellular network to a wireless local area network according to the notification information received by the receiver;

The base station belongs to the cellular network.

In a first possible implementation manner, the user terminal further includes:

- 10 - a processor, configured to obtain access point information of an available wireless local area network;

a transmitter, configured to send access point information acquired by the processor to a base station;

The access point information includes an access point identifier of the available wireless local area network; or the access point information includes one or more access point identifiers in the available wireless local area network; The access point information further includes the signal quality of the access point corresponding to the access point identifier of the available wireless local area network, and/or the load information of the access point corresponding to the access point identifier, or the access point information. The method further includes the one or more access points of the available wireless local area network identifying the signal quality of the corresponding access point, and/or the load information of the access point corresponding to the access point identifier.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation, the processor is further configured to detect an access point of the available wireless local area network;

The processor is specifically configured to: when detecting that the user terminal initiates a preset service, detecting an access point of the available wireless local area network, where the preset service is a service specified by a protocol, or a service specified by a base station in advance , or the service specified by the user terminal application layer.

With the second possible implementation of the sixth aspect, in a fourth possible implementation, the user terminal further includes:

a memory, configured to store access point information of the first access point, where the first access point is an access point of a wireless local area network accessed by the user terminal;

The memory is further configured to store a cell identifier of the cellular network cell detected in the coverage of the first access point, and a mapping relationship between the first access point and the cell identifier;

The processor is specifically configured to acquire a cell identifier of a current cell to which the user terminal belongs, according to the

- 11 - The mapping relationship stored in the memory searches for an access point identifier of the first access point corresponding to the cell identifier of the current cell, and determines access point information of the available wireless local area network.

With reference to the sixth aspect, in a fifth possible implementation, the notification information received by the receiver includes an identifier of the target access point;

The processor is specifically configured to access the target access point according to the identifier of the target access point in the notification information, and migrate from a cellular network to a wireless local area network corresponding to the target access point.

With reference to the sixth aspect, in a sixth possible implementation, the receiver is further configured to receive priority information of a wireless local area network access point that is broadcast by the base station, where the processor is specifically configured to select according to the priority information. Access point access; or

The receiver is further configured to receive the sorting information sent by the base station, and select a wireless local area network access point to perform access according to the sorting information.

The network migration method and device provided by the present invention, the base station sends notification information to the user terminal according to the load information of the wireless local area network access point and the load information of the current cellular network of the cell to which the user terminal belongs, indicating that the user terminal migrates from the cellular network to the wireless local area network. Compared with the prior art, the base station can comprehensively consider the load information of the cellular network and the load information of the wireless local area network access point, thereby indicating that the user terminal migrates from the cellular network to the wireless local area network, can ensure the service quality of the user terminal, and improve the communication network. Resource utilization. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will be true.

- 12 - The drawings used in the examples or the description of the prior art are briefly introduced. It is obvious that the drawings in the following description are only some embodiments of the present invention, and are not creative to those skilled in the art. Other drawings can also be obtained from these drawings on the premise of labor.

1 is a schematic flowchart of a network migration method according to Embodiment 1 of the present invention;

2 is a schematic flowchart of a network migration method according to Embodiment 2 of the present invention;

3 is a schematic flowchart of a network migration method according to Embodiment 3 of the present invention;

4 and FIG. 5 are structural structural diagrams of a base station according to Embodiment 4 of the present invention;

6 and FIG. 7 are structural block diagrams of a user terminal according to Embodiment 5 of the present invention;

FIG. 8 and FIG. 9 are structural diagrams of a base station according to Embodiment 6 of the present invention;

10 and FIG. 11 are block diagrams showing the structure of a user terminal according to Embodiment 7 of the present invention. detailed description

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. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

The embodiment of the present invention provides a network migration method. As shown in FIG. 1 , the method includes: 101. A base station sends notification information to a user terminal, where the notification information is used to indicate that a UE (User Equipment) is from a cellular. The network is migrated to a wireless LAN. Wherein the base station belongs to

- 13 - The cellular network.

The network migration method provided by the embodiment of the present invention is performed by the base station side of the communication system, and is applicable to

Various standard communication systems developed by 3GPP (The 3rd Generation Partnership Project), such as GSM (Global System for Mobile Communications, abbreviated as Global System for Mobile Communications), WCDMA (Wideband Code Division Multiple Access) , Wideband Code Division Multiple Access) systems and LTE (Long Term Evolution) systems.

The base station in this embodiment may refer to a device in the access network that communicates with the wireless terminal over one or more cells on the air interface. For example, it may be a base station in GSM or CDMA (base transceiver station, BTS for short), or a base station in WCDMA (in English: NodeB), or an evolved base station in LTE (in English: evolutional The Node B, which is referred to as a base station or an e-NodeB, or a base station in a subsequent evolved network, is not limited by the present invention.

In the network migration method provided by this embodiment, the base station decides to switch the UE from the cellular network to the WLAN. For example, when the UE requests to be handed over to the WLAN by the cellular network, the base station determines whether to allow the UE to migrate to the WLAN to ensure the quality of service of the UE, by using the load information of the cell to which the UE belongs and the load information of the WLAN AP; or When the base station detects that the UE initiates a service request suitable for execution in the WLAN, the base station may actively send notification information to the UE to instruct the UE to migrate to the WLAN to obtain better service quality.

Specifically, the base station can comprehensively consider the load information of the cellular network and the load information of the WLAN access point to determine whether to allow the UE to migrate from the cellular network to the WLAN network. E.g:

In one scenario: If the load on the cellular network is high and the load on the WLAN access point is low,

- 14 - Then, when the UE initiates a new service request, and the service request can be performed by using the WLAN network, the base station sends the notification information to the UE to instruct the UE to migrate from the cellular network to the WLAN network.

In another scenario, if the load of the cellular network is low and the load of the WLAN access point is high, then when the UE initiates a new service request, and the service request can be performed through the WLAN network, the base station is in the In the case that the notification information is not sent to the UE, the UE performs the service request through the cellular network. In this way, the quality of the service can be ensured, because the WLAN access point has a high load, and even if the UE is migrated to the WLAN network, there is not enough free bandwidth to perform the service, and the quality of the service cannot be guaranteed. Meanwhile, due to the cellular network The load is low, so the UE is reserved in the cellular network to perform the service request, and the quality of the service can be guaranteed.

In order to facilitate understanding, and to achieve better benefits, the present embodiment provides the following alternatives for reference:

Optionally, in order to facilitate the base station to decide whether to migrate the user terminal from the cellular network to the WLAN network, and when the base station determines that the user terminal needs to be migrated to the WLAN network, select a better WLAN access for the user terminal. In the embodiment, the better WLAN access point may be a WLAN access point with better signal quality or a lower WLAN access point, and the base station may acquire the current cell to which the user terminal belongs. The load information and/or the load information of the available access point, the available access point is an access point of the available wireless local area network detected by the user terminal; wherein the current cell is served by the base station, The notification information is specifically used to indicate that the user terminal migrates from the base station of the cellular network to the available access of the wireless local area network.

- 15 - point.

Optionally, in order to improve the flexibility of the user experience, in this embodiment, the base station may receive the access point information that is sent by the user terminal, where the access point information includes: An access point identifier of the available wireless local area network, or one or more access point identifiers in the available wireless local area network provided by the user terminal (eg, the user terminal detects 10 available WLAN access points, and the user terminal may The access point information of three WLAN access points is selected and provided to the base station according to user preferences.

Optionally, in order to implement the active migration of the user terminal from the cellular network to the WLAN, before the sending the notification information to the user terminal, the method further includes: receiving, by the user terminal, request information for accessing a wireless local area network, where the access wireless The request information of the local area network is used to request that the user terminal be migrated from the cellular network to the wireless local area network.

Optionally, the base station may send the foregoing to the user terminal when a load of the cellular network is higher than a first threshold, and/or when a load of the available access point is lower than a second threshold. Notification information.

Optionally, the base station may send the notification information to the user terminal by using a radio resource control connection reject RRC Connection Reject message; or

- 16 - Transmitting the notification information to the user terminal in the RRC Connection Release message of the radio resource control connection; or

Transmitting the notification information to the user terminal by using a radio resource control connection reconfiguration RRC Connection Reconfiguration message; or

The notification information is carried in the paging Paging message and sent to the user terminal; or the new radio resource control RRC message is sent, and the notification information is carried in the newly created RRC message and sent to the user terminal.

It should be noted that the method provided in this embodiment can implement the migration of the user terminal from the cellular network to the WLAN, regardless of whether the user terminal and the base station are in an IDLE state or a connected state. When the user terminal and the base station are in the IDLE state, the base station may carry the notification information in a Paging message and send the message to the user terminal to instruct the user terminal to migrate from the cellular network to the WLAN.

Optionally, in order to reduce the delay of the user terminal from migrating from the cellular network to the WLAN, the base station may further add an identifier of the target access point to the notification information, so that the user terminal accesses according to the notification information. An access point corresponding to the identifier of the target access point;

The access point belongs to the wireless local area network.

Optionally, the base station may send the notification information to the user terminal when detecting that the user terminal initiates a preset service, where the preset service is a service specified by a protocol, or a base station pre-specifies The service, or the service specified in the user subscription information, or the service specified in the context of the user terminal.

Optionally, the base station may be from the MME (Mobility Management Entity, mobility management)

- 17 - The entity is configured to obtain first configuration information of the user, where the first configuration information is used to determine the preset service. Optionally, the base station may obtain second configuration information of the user from the MME, where the second configuration information is used to determine a network migration criterion of the user.

Optionally, the base station may obtain the load information and/or the signal quality of each access point in the access point information, so that the user terminal can conveniently select the WLAN access point for access, according to the load information. And/or signal quality determining priority information of the available access points; broadcasting the priority information in a system message to facilitate migration of the user terminal to the wireless local area network according to the priority information.

Optionally, the base station may obtain the load information and/or the signal quality of each access point in the access point information, so that the user terminal can conveniently select the WLAN access point for access, according to the load information. And/or signal quality sorting the access points to obtain sorting information;

The ordering information is sent to the user terminal, so that the user terminal migrates to the wireless local area network according to the order information.

According to the network migration method provided by the embodiment of the present invention, the base station sends notification information to the user terminal according to the load information of the wireless local area network access point and the load information of the current cellular network of the cell to which the user terminal belongs, indicating that the user terminal migrates from the cellular network to the wireless network. local area network. Compared with the prior art, the base station can comprehensively consider the load information of the cellular network and the load information of the wireless local area network access point, thereby indicating that the user terminal migrates from the cellular network to the wireless local area network, can ensure the service quality of the user terminal, and improve the communication network. Resource utilization.

- 18 - Embodiment 2

The embodiment of the present invention provides a network migration method. As shown in FIG. 2, the method includes: 201. A UE receives notification information sent by a base station.

202. The UE migrates from the cellular network to the wireless local area network according to the notification information.

The notification information is sent by the base station to the UE after considering the load information of the cellular network and/or the load information of the WLAN access point, and is used to indicate that the UE migrates from the cellular network to the WLAN. .

In the prior art, the process of migrating a UE from a cellular network to a WLAN is initiated and executed by the UE. Different from the prior art, the UE in this embodiment migrates to the WLAN after receiving the notification information sent by the base station. Since the base station can better know the network quality of the cellular network and the WLAN, it is possible to select a better network from the cellular network and the WLAN for use by the UE, and to improve the service quality of the UE.

The network migration method provided by the embodiment of the present invention, the UE migrates to the WLAN by the cellular network after receiving the notification information sent by the base station; and the notification information is delivered by the base station, and the process of the UE being migrated from the cellular network to the WLAN can be guaranteed. The network quality of the WLAN is higher than the network quality of the cellular network, so that the quality of the UE can be ensured and the resource utilization of the communication network can be improved. Embodiment 3

The embodiment of the present invention further provides a network migration method, as shown in FIG. 3, where the method includes:

- 19 - 301. The UE acquires access point information of an available wireless local area network.

It is to be noted that the available wireless local area network refers to a wireless local area network that the UE can access and is provided by an access point configured by an operator to which the UE belongs.

The access point information includes: an access point identifier of the available wireless local area network (ie, an access point identifier of all available wireless local area networks detected by the user terminal), or one or more of the available wireless local area networks The access point identifier (ie, the user terminal can select one or more access point identifiers that are desired to be accessed according to user preferences from among the detected access points of all available wireless local area networks).

Optionally, the access point information may further include: a signal quality of the access point corresponding to the access point identifier of the available wireless local area network, and/or a load information of the access point corresponding to the access point identifier, Or

The access point information may further include a signal quality of an access point corresponding to one or more access point identifiers of the available wireless local area network provided by the user terminal, and/or corresponding to the access point identifier. The load information of the access point.

Specifically, in order to implement 301, the following two methods are provided for reference: Method 1:

Sl, the UE detects an access point of an available wireless local area network.

Optionally, in order to save power consumption of the UE, the UE may detect an access point of the available wireless local area network when the service initiated by the UE belongs to the preset service, where the preset service is a service specified by the protocol, or The service specified by the base station in advance, or the service specified by the user terminal application layer. In this embodiment, the preset service is a service that can be performed by using a wireless local area network, for example, a packet data transmission service,

- 20 - Network access services, etc.

Generally, the preset service may be set by a communication carrier or may be set by a user.

Preferably, the preset service may be set to some services that have higher requirements on network bandwidth and/or lower latency requirements, such as: file download service, video online play service, and the like.

S2. The UE detects an access point identifier of an available wireless local area network, and determines the access point information. Method Two:

The UE stores the access point information of the first access point, where the first access point is an access point of the wireless local area network accessed by the UE.

The UE stores the cell identifier of the cell network that is detected in the coverage of the first access point, and establishes a mapping relationship between the first access point and the cell identifier.

The UE obtains the cell identifier of the current cell, and searches for the access point identifier of the first access point corresponding to the cell identifier of the current cell according to the mapping relationship, and determines the access point of the available wireless local area network. information.

For example, when the UE is located in the first cell, accessing the access point A, the UE stores the cell identifier of the first cell, the identifier of the access point A, and the first cell and the access point. The mapping relationship of A. When the UE migrates from the other cell to the first cell, the identifier of the access point corresponding to the first cell is obtained by searching the locally stored mapping relationship, and the access point of the currently available wireless local area network is determined according to the identifier. information.

302. The UE sends the access point information to a base station.

- twenty one - Optionally, in order to save channel resources, the UE may trigger step 302 when initiating a preset service. The preset service is a service specified by the protocol, or a service specified by the base station, or a service specified by the user terminal application layer; or the preset service may also be a service with higher network bandwidth requirements. If the UE does not initiate the preset service, the access point information does not need to be sent to the base station, thereby saving channel resources and improving utilization of channel resources.

Preferably, when the access point information detected by the UE includes multiple access points, the signal quality of each access point of the available wireless local area network may be detected, and the identifier of the access point whose signal quality is higher than a preset threshold is determined, according to The identifier determines access point information, and sends the access point information to a base station. In this way, when the access point information is sent to the base station, some access points with poor signal quality can be filtered out, which facilitates the screening of the base station and ensures the quality of the service.

Optionally, the UE may further sort the access points of the available wireless local area network according to the signal quality and/or load information of each access point, obtain the sorting information, and send the sorting information to the base station, so that The base station sequentially detects the access points of the available wireless local area network according to the sorting information, determines whether to migrate the user terminal to the WLAN, or determines a target access point that the user terminal can migrate.

For example, the UE may sort the detected access points according to the signal quality of each access point, and send the sorting result to the UE, so that the base station can perform the sorting result according to the sorting result, and combine the load information of each access point. Determining an access point to which the UE is preferably accessed.

303. The UE sends request information for accessing the WLAN to the base station, where the request information for accessing the WLAN is used to request the base station to migrate the UE from the cellular network to the wireless local area network.

- twenty two - It should be noted that 303 is an optional step, which is applicable when the UE wants to actively migrate to the WLAN. In this case, the UE may perform 303 to request migration to the WLAN. In another case, when the base station actively migrates the UE to the WLAN according to the service type initiated by the UE, the UE does not need to perform 303. Optionally, when the UE initiates the preset service, the UE may choose to perform 303. The preset service is a service that is suitable for execution in a WLAN. For example, the preset service may be a service specified by a protocol, or a service specified by a base station, or a service specified by a user terminal application layer.

304. The base station receives the request information for accessing the WLAN sent by the UE, where the request information of the access WLAN is used to request that the user terminal be migrated from the cellular network to the wireless local area network.

Obviously, 304 is also optional, and 304 will only be executed if 303 is executed.

305. The base station receives the access point information sent by the user equipment, and determines an available access point according to the access point information.

The access point information includes an access point identifier of the available wireless local area network detected by the user terminal; or

The access point information includes one or more access point identifiers of the available wireless local area network provided by the user terminal.

Optionally, in order to facilitate the base station to determine the migration process of the user terminal from the cellular network to the WLAN, the access point information may further include an access point corresponding to the access point identifier of the available wireless local area network detected by the user terminal. Signal quality; or,

The access point information includes one of the available wireless local area networks provided by the user terminal

- twenty three - Or multiple access points identify the signal quality of the corresponding access point.

Specifically, the available access point is an access point corresponding to the access point identifier, that is, an access point of the available wireless local area network detected by the UE.

306. The base station acquires load information of a current cellular network cell to which the UE belongs, and/or load information of the available access point, according to the detected load information of the cellular network and a load of an available access point. The information decides whether to migrate the UE from a cellular network to a wireless local area network.

For example, the UE may preset a first threshold and a second threshold, when detecting that the load of the cellular network is higher than a first threshold, and/or when the load of the available access point is lower than a second threshold Then, the UE is decided to migrate from the cellular network to the wireless local area network. That is, when the load of the cellular network of the cell to which the UE belongs is high, and/or the load of the available access point is low, the base station may instruct the UE to migrate to the wireless local area network to perform services.

Specifically, the base station may directly receive the load information of the available access point sent by the available access point, or may obtain the load information of the available access point by parsing the access point information sent by the UE, where No restrictions are imposed.

307. When the base station determines to migrate the UE from a cellular network to a wireless local area network, the base station sends notification information to the UE, where the notification information is used to indicate that the UE migrates from a cellular network to a wireless local area network. .

Optionally, the base station may send the notification information to the UE when the UE initiates a preset service, so that the UE migrates from the cellular network to the wireless local area network. The preset service is a service specified by the protocol, or a pre-designated service of the base station, or a user terminal application layer.

- twenty four - The specified service, or the service specified in the user subscription information, or the service specified in the context of the user terminal. The first configuration information is used to determine the preset service, and the first configuration information is used by the MME to obtain the first configuration information of the user.

Optionally, the base station may further acquire second configuration information of the user from the MME, where the second configuration information is used to determine a network migration criterion of the user. For example, the base station may acquire the preference information of the UE by using the second configuration information, where the preference information includes: when the cellular network and the WLAN can support the normal communication of the UE, the preferred access of the UE The identity of the network. For example, the user may be configured to perform the service request through the wireless local area network when the UE initiates the webpage browsing service request. When the UE cellular network and the WLAN can ensure that the UE performs the service request, the UE performs the cellular network. The business request.

Optionally, the base station may send the notification information to the UE by using, but not limited to, the following manner: (1) The base station carries the notification information in an RRC Connection Reject (Radio Resource Control Connection Reject) message. Sent to the UE; or

(2) the base station carries the notification information to the UE in an RRC Connection Release message; or

(3) the base station carries the notification information in an RRC Connection Reconfiguration message to the UE; or

(4) carrying the notification information in a paging message and sending the message to the user terminal;

- 25 - or

(5) The base station can create an RRC message, and the notification information is carried in the newly created RRC message and sent to the UE.

308. The UE receives the notification information sent by the base station, and migrates from the cellular network to the wireless local area network according to the notification information.

Preferably, in order to reduce the delay of the UE accessing the WLAN, the base station may adopt the following method:

method one:

51. The base station adds an identifier of the target access point to the notification information.

After receiving the communication information, the UE accesses the target access point according to the identifier of the target access point in the notification information, and migrates from the cellular network to the wireless corresponding to the target access point. Local area network. The access point belongs to the wireless local area network.

For example, when the access point information sent by the UE to the base station includes the identifiers of the multiple access points, the base station may determine, from the multiple access points, one access point as the target access point, where The identifier of the target access point is added to the notification information.

Optionally, when the base station determines the target access point, if the access point information sent by the UE to the base station includes the signal quality of each access point or the priority information of each access point, the base station may consider In the case of load of each access point, the access point with the best signal quality or the access point with the highest priority is selected as the target access point.

Method Two:

- 26 - 51. The base station acquires load information and/or signal quality of each access point in the access point information, and sets priority information of each access point according to the load information and/or signal quality.

52. Broadcast the priority information in a system message;

The UE receives the priority information of the wireless local area network access point broadcasted by the base station, and migrates to the wireless local area network according to the priority information.

For example, when setting the priority information of each access point, the base station can set the priority of the access point with higher load to be lower than the priority of the access point with lower load.

Method three:

The base station acquires load information and/or signal quality of each access point in the access point information, and sorts the access points according to the load information and/or signal quality to obtain sorting information.

52. The base station sends the sorting information to a user terminal, so that the user terminal migrates to the wireless local area network according to the sorting information.

According to the network migration method provided by the embodiment of the present invention, the base station sends notification information to the user terminal according to the load information of the wireless local area network access point and the load information of the current cellular network of the cell to which the user terminal belongs, indicating that the user terminal migrates from the cellular network to the wireless network. local area network. Compared with the prior art, the base station can comprehensively consider the load information of the cellular network and the load information of the wireless local area network access point, thereby indicating that the user terminal migrates from the cellular network to the wireless local area network, can ensure the service quality of the user terminal, and improve the communication network. Resource utilization. Embodiment 4

- 27 - The embodiment of the present invention provides a base station, which can implement the method in the first embodiment of the foregoing method, and the method on the base station side in the third embodiment of the method. As shown in FIG. 4, the base station includes:

The sending unit 41 is configured to send, to the user terminal, notification information, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The base station belongs to the cellular network.

Optionally, as shown in FIG. 5, the base station further includes:

The obtaining unit 42 is configured to acquire load information of a current cell to which the user terminal belongs and/or load information of an available access point, where the available access point is an access point of an available wireless local area network detected by the user terminal;

Optionally, as shown in FIG. 5, the base station further includes:

The receiving unit 43 is configured to receive the access point information sent by the user terminal, where the access point information includes: an access point identifier of the available wireless local area network detected by the user terminal, or the access point The information includes one or more access point identities in the available wireless local area network provided by the user terminal.

Optionally, the access point information received by the receiving unit 43 further includes a signal quality of the access point corresponding to the access point identifier of the available wireless local area network detected by the user terminal, or

The access point information received by the receiving unit 43 further includes the available information provided by the user terminal.

- 28 - One or more access points in the wireless local area network identify the signal quality of the corresponding access point. Optionally, the receiving unit 43 is further configured to receive request information of the access wireless local area network sent by the user terminal, where the request information of the access wireless local area network is used to request the base station to use the user terminal by the The cellular network migrates to the wireless local area network.

Optionally, the sending unit 41 is specifically configured to: when the load of the cellular network acquired by the acquiring unit 42 is higher than a first threshold, and/or when the load of the available access point acquired by the acquiring unit 42 is lower than When the second threshold is reached, the notification information is sent to the user terminal.

Specifically, the sending unit 41 is configured to send the notification information to the user terminal by using a radio resource control connection reject RRC Connection Reject message; or

The sending unit 41 is further configured to: send the notification information to the RRC Connection Release message in the RRC Connection Release message, and send the information to the user terminal; or

The sending unit 41 is further configured to: send the notification information to the user terminal by using the RRC Connection Reconfiguration RRC Connection Reconfiguration message; or

The sending unit 41 is further configured to carry the notification information in a paging Paging message and send the information to the user terminal; or

The sending unit 41 is further configured to create a radio resource control RRC message, and the notification information is carried in the newly created RRC message and sent to the user terminal.

Optionally, the sending unit 41 is further configured to: add an identifier of the target access point to the notification information, so that the user terminal accesses the identifier corresponding to the identifier of the target access point according to the notification information. Entry point

- 29 - The access point belongs to the wireless local area network.

Optionally, the sending unit 41 is specifically configured to: when the user terminal is configured to initiate a preset service, send the notification information to the user terminal, where the preset service is a service specified by the protocol, or The service specified in advance by the base station, or the service specified in the user subscription information, or the service specified in the context of the user terminal.

Optionally, the obtaining unit 42 is further configured to acquire first configuration information of the user from the MME, where the first configuration information is used to determine the preset service.

Optionally, the obtaining unit 42 is further configured to acquire second configuration information of the user from the MME, where the second configuration information is used to determine a network migration criterion of the user.

As shown in FIG. 5, the base station further includes:

The first processing unit 44 is configured to acquire load information and/or signal quality of each access point in the access point information, and determine priority information of the available access point according to the load information and/or signal quality. ;

The sending unit 41 is further configured to broadcast the priority information determined by the first processing unit 44 in a system message, so that the user terminal migrates to the wireless local area network according to the priority information.

Optionally, as shown in the dotted line in FIG. 5, the base station further includes:

The second processing unit 45 is configured to acquire load information and/or signal quality of the access point in the access point information, and sort the access points according to the load information and/or signal quality to obtain sorting information. ;

- 30 - The sending unit 41 is further configured to send the sorting information obtained by the second processing unit 45 to the user terminal, so that the user terminal migrates to the wireless local area network according to the sorting information.

The base station provided by the embodiment of the present invention may send notification information to the user terminal according to the load information of the wireless local area network access point and the load information of the current cellular network of the cell to which the user terminal belongs, and instruct the user terminal to migrate from the cellular network to the wireless local area network. Compared with the prior art, the base station provided in this embodiment can comprehensively consider the load information of the cellular network and the load information of the wireless local area network access point, thereby indicating that the user terminal migrates from the cellular network to the wireless local area network, and can ensure the service quality of the user terminal. And improve the resource utilization of the communication network. Embodiment 5

The embodiment of the present invention provides a user terminal, which can implement the method in the second embodiment of the foregoing method, and the method performed by the user terminal in the third embodiment. As shown in FIG. 6, the user terminal includes:

The receiving unit 61 is configured to receive notification information sent by the base station, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The processing unit 62 is configured to migrate from the cellular network to the wireless local area network according to the notification information received by the receiving unit 61;

The base station belongs to the cellular network.

Optionally, as shown in FIG. 7, the user terminal further includes:

The obtaining unit 63 is configured to obtain access point information of an available wireless local area network;

- 31 - a sending unit 64, configured to send the access point information acquired by the acquiring unit 63 to the base station, where the access point information includes an access point identifier of the available wireless local area network; or the access point The information includes one or more access point identities in the available wireless local area network. Optionally, the access point information acquired by the acquiring unit 63 further includes a signal quality of an access point corresponding to the access point identifier of the available wireless local area network, and/or an access point corresponding to the access point identifier. Load information, or

The access point information acquired by the acquiring unit 63 further includes the signal quality of the access point corresponding to the one or more access points of the available wireless local area network, and/or the access point corresponding to the access point identifier. Load information.

As shown in FIG. 7, the user terminal further includes: a detecting unit 65, configured to detect an access point of the available wireless local area network.

Optionally, the detecting unit 65 is specifically configured to: when the user terminal initiates a preset service, detect an access point of the available wireless local area network, where the preset service is a service specified by a protocol, or a pre-designated by a base station. The service specified by the service, or user terminal application layer.

As shown in FIG. 7, the user terminal further includes:

The storage unit 66 is configured to store access point information of the first access point, where the first access point is an access point of a wireless local area network accessed by the user terminal;

The storage unit 66 is further configured to store a cell identifier of the cellular network cell detected in the coverage of the first access point, and a mapping relationship between the first access point and the cell identifier;

The acquiring unit 63 is specifically configured to acquire a cell identifier of a current cell to which the user terminal belongs, and

- 32 - And determining, according to the mapping relationship stored by the storage unit 66, an access point identifier of the first access point corresponding to the cell identifier of the current cell, and determining access point information of the available wireless local area network.

Optionally, the sending unit 64 is specifically configured to: when the user terminal initiates a preset service, send the access point information to the base station, where the preset service is a service specified by a protocol, or The service specified by the base station in advance or the service specified by the user terminal application layer.

Optionally, the acquiring unit 63 is specifically configured to determine an identifier of an access point whose signal quality is higher than a preset threshold, and determine access point information according to the identifier. The sending unit 64 is configured to use the acquiring unit 63. The determined access point information is transmitted to the base station.

Optionally, the processing unit 62 is further configured to sort the access points of the available wireless local area network according to signal quality and/or load information of each access point to obtain ranking information.

The sending unit 64 is configured to send the sorting information obtained by the processing unit 62 to the base station, so that the base station sequentially selects a target access point for the user terminal according to the sorting information.

Specifically, the sending unit 64 is further configured to send, to the base station, request information for accessing a wireless local area network, where the request information of the access wireless local area network is used to request the base station to migrate the user terminal from a cellular network to a wireless local area network.

Optionally, the sending unit 64 is configured to: when the user terminal initiates a preset service, send, to the base station, request information for accessing a wireless local area network, where the preset service is a service specified by a protocol, or a base station pre-designates The business, or the user terminal application layer specifies the business.

Optionally, the notification information received by the receiving unit 61 includes an identifier of the target access point. The processing unit 62 is specifically configured to: according to the target of the target access point in the notification information.

- 33 - Accessing the target access point, and migrating from the cellular network to the wireless local area network corresponding to the target access point.

Optionally, the receiving unit 61 is further configured to receive priority information of a wireless local area network access point that is broadcast by the base station, where the processing unit 62 is configured to select an access point to perform access according to the priority information; The priority information may be set by the base station according to load information and/or signal quality of each access point.

Optionally, the receiving unit 61 is further configured to receive the sorting information sent by the base station, so that the processing unit 62 is specifically configured to: select, according to the sorting information, a wireless local area network access point to access; wherein, the sorting information The base station may be obtained by performing sort processing on the nodes according to load information and/or signal quality of each access point.

The user terminal provided by the embodiment of the present invention may report the access point information of the available wireless local area network to the base station, so that the base station comprehensively considers the load information of the cell network of the cell to which the user terminal belongs and the load information of the wireless local area network access point to determine whether The user terminal is migrated from the cellular network to the wireless local area network; if yes, the base station sends notification information to the user terminal, and the user terminal migrates from the cellular network to the wireless local area network after receiving the notification information. Compared with the prior art, the user terminal provided in this embodiment can ensure the service quality of the user terminal and improve the resource utilization of the communication network during the network migration process. Embodiment 6

The embodiment of the present invention provides a base station, which can implement the first embodiment of the foregoing method, and implement

- 34 - The method performed by the base station side in the third embodiment, as shown in FIG. 8, the base station includes:

The transmitter 81 is configured to send, to the user terminal, notification information, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The base station belongs to the cellular network.

As shown in FIG. 9, the base station further includes:

The processor 82 is configured to acquire load information of a current cellular network cell to which the user terminal belongs and/or load information of an available access point, where the available access point is an access point of an available wireless local area network detected by the user terminal. ;

As shown in FIG. 9, the base station further includes:

The receiver 83 is configured to receive the access point information sent by the user terminal, where the access point information includes: an access point identifier of the available wireless local area network detected by the user terminal, or the user terminal provides One or more access point identifiers in the available wireless local area network.

Optionally, the access point information received by the receiver 83 further includes a signal quality of the access point corresponding to the access point identifier of the available wireless local area network detected by the user terminal, or

The access point information received by the receiver 83 further includes a signal quality of an access point corresponding to one or more of the available access point identifiers provided by the user terminal.

Optionally, the receiver 83 is further configured to receive the access wireless local area network sent by the user terminal.

- 35 - The request information, the request information for accessing the wireless local area network is used to request the base station to migrate the user terminal from the cellular network to the wireless local area network.

Optionally, the transmitter 81 is specifically configured to: when the load of the cellular network acquired by the processor 82 is higher than a first threshold, and/or when the load of the available access point acquired by the processor 82 is lower than When the second threshold is reached, the notification information is sent to the user terminal.

Specifically, the transmitter 81 is configured to send the notification information to the RRC Connection Reject message in the RRC Connection Reject message to be sent to the user terminal; or

The transmitter 81 is further configured to send the notification information to the user terminal by using a radio resource control connection release RRC Connection Release message; or

The transmitter 81 is further configured to: send the notification information to the user terminal by using a radio resource control connection reconfiguration RRC Connection Reconfiguration message; or

The transmitter 81 is further configured to carry the notification information in a paging Paging message and send the information to the user terminal; or

The transmitter 81 is further configured to create a radio resource control RRC message, and send the notification information to the newly created RRC message and send the message to the user terminal.

Optionally, the transmitter 81 is further configured to: add an identifier of the target access point to the notification information, so that the user terminal accesses the identifier corresponding to the identifier of the target access point according to the notification information. Entry point

The access point belongs to the wireless local area network.

Optionally, the transmitter 81 is specifically configured to: when detecting that the user terminal initiates a preset service,

- 36 - Sending the notification information to the user terminal, where the preset service is a service specified by the protocol, or a service specified in advance by the base station, or a service specified in the user subscription information, or a service specified in a context of the user terminal.

Optionally, the processor 82 is further configured to acquire first configuration information of the user from the mobility management entity MME, where the first configuration information is used to determine the preset service.

Optionally, the processor 82 is further configured to acquire second configuration information of the user from the MME, where the second configuration information is used to determine a network migration criterion of the user.

Optionally, the processor 82 is further configured to acquire load information and/or signal quality of each access point in the access point information, and determine the available access point according to the load information and/or signal quality. Priority information;

The transmitter 81 is further configured to broadcast the priority information determined by the processor 82 in a system message, so that the user terminal migrates to the wireless local area network according to the priority information.

Optionally, the processor 82 is further configured to acquire load information and/or signal quality of the access point in the access point information, and sort the access point according to the load information and/or signal quality. , get sorting information;

The transmitter 81 is further configured to send the sorting information obtained by the processor 82 to the user terminal, so that the user terminal migrates to the wireless local area network according to the sorting information.

The base station provided by the embodiment of the present invention may send notification information to the user terminal according to the load information of the wireless local area network access point and the load information of the current cellular network of the cell to which the user terminal belongs, and instruct the user terminal to migrate from the cellular network to the wireless local area network. Compared with the prior art, this embodiment provides

- 37 - The base station can comprehensively consider the load information of the cellular network and the load information of the wireless local area network access point, thereby indicating that the user terminal migrates from the cellular network to the wireless local area network, can ensure the service quality of the user terminal, and improve the resource utilization of the communication network. Example 7

The embodiment of the present invention provides a user terminal, which can implement the method performed by the UE in the first embodiment and the third embodiment. As shown in FIG. 10, the user terminal includes:

The receiver 1001 is configured to receive notification information sent by the base station, where the notification information is used to indicate that the user terminal migrates from the cellular network to the wireless local area network;

The processor 1002 is configured to migrate from the cellular network to the wireless local area network according to the notification information received by the receiver 1001.

The base station belongs to the cellular network.

Optionally, the processor 1002 is further configured to obtain access point information of an available wireless local area network. As shown in FIG. 11, the user terminal further includes: a transmitter 1003, configured to:

1002 acquired access point information is sent to the base station;

The access point information includes an access point identifier of the available wireless local area network; or the access point information includes one or more access point identifiers in the available wireless local area network. Optionally, the access point information acquired by the processor 1002 further includes: a signal quality of the access point corresponding to the access point identifier of the available wireless local area network, and/or an access point corresponding to the access point identifier. Load information, or

- 38 - The access point information acquired by the processor 1002 further includes that the one or more access points of the available wireless local area network identify the signal quality of the corresponding access point, and/or the access point corresponding to the access point identifier. Load information.

Optionally, the processor 1002 is further configured to detect an access point of an available wireless local area network.

Optionally, the processor 1002 is specifically configured to: when detecting that the user terminal initiates a preset service, detecting an access point of the available wireless local area network, where the preset service is a service specified by the protocol, or the base station is pre- The specified service, or the service specified by the user terminal application layer.

As shown in FIG. 11, the user terminal further includes:

The memory 1004 is configured to store access point information of the first access point, where the first access point is an access point of a wireless local area network accessed by the user terminal;

The memory 1004 is further configured to store a cell identifier of the cellular network cell detected in the coverage of the first access point, and a mapping relationship between the first access point and the cell identifier; 1002 is specifically configured to obtain a cell identifier of a current cell to which the user terminal belongs, and search for an access point identifier of the first access point corresponding to the cell identifier of the current cell according to the mapping relationship stored in the memory 1004, and determine that the available identifier is available. Access point information for the WLAN.

Optionally, the transmitter 1003 is specifically configured to: when the user terminal initiates a preset service, send the access point information to the base station, where the preset service is a service specified by a protocol, or The service specified by the base station in advance or the service specified by the user terminal application layer.

Optionally, the processor 1002 is specifically configured to determine an identifier of an access point whose signal quality is higher than a preset threshold, and determine access point information according to the identifier. Then, the transmitter 1003 is configured to use the processing.

- 39 - The access point information determined by the device 1002 is transmitted to the base station.

Optionally, the processor 1002 is further configured to sort the access points of the available wireless local area network according to signal quality and load information of each access point, to obtain sorting information;

The transmitter 1003 is configured to send the sorting information obtained by the processor 1002 to the base station, so that the base station sequentially selects a target access point for the user terminal according to the sorting information.

Optionally, the transmitter 1003 is further configured to send, to the base station, request information for accessing a wireless local area network, where the request information of the access wireless local area network is used to request the base station to migrate the user terminal from a cellular network to Wireless LAN.

Optionally, the transmitter 1003 is specifically configured to: when the user terminal initiates a preset service, send, to the base station, request information for accessing a wireless local area network, where the preset service is a service specified by the protocol, or the base station is pre- The specified service, or the service specified by the user terminal application layer.

Optionally, the notification information received by the receiver 1001 includes an identifier of the target access point, where the processor 1002 is specifically configured to access the target according to the identifier of the target access point in the notification information. The access point migrates from the cellular network to a wireless local area network corresponding to the target access point.

Optionally, the receiver 1001 is further configured to receive priority information of a wireless local area network access point that is broadcast by the base station, where the processor 1002 is configured to select an access point to perform access according to the priority information; The priority information may be set by the base station according to load information and/or signal quality of each access point.

Optionally, the receiver 1001 is further configured to receive sequence information sent by the base station, so that the

- 40 - The processor 1002 is specifically configured to: select, according to the sorting information, a wireless local area network access point to perform access; wherein the sorting information may be that the base station compares the nodes according to load information and/or signal quality of each access point. Obtained after sorting.

The user terminal provided by the embodiment of the present invention may report the access point information of the available wireless local area network to the base station, so that the base station comprehensively considers the load information of the cell network of the cell to which the user terminal belongs and the load information of the wireless local area network access point to determine whether The user terminal is migrated from the cellular network to the wireless local area network; if yes, the base station sends notification information to the user terminal, and the user terminal migrates from the cellular network to the wireless local area network after receiving the notification information. Compared with the prior art, the user terminal provided in this embodiment can ensure the service quality of the user terminal and improve the resource utilization of the communication network during the network migration process.

The embodiment of the present invention further provides a network migration system, including the base station shown in FIG. 8 or FIG. 9 , and the user terminal shown in FIG. 10 or FIG. 11 , where the base station can send notification information to the user terminal, The user terminal is caused to migrate from the cellular network to the WLAN according to the communication information. For details, refer to the sixth embodiment and the seventh embodiment, and details are not described herein again. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , hard drive or CD

- 41 - And, a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

- 42 -

Claims

claims

1. A network migration method, characterized by including:

The base station sends notification information to the user terminal, where the notification information is used to instruct the user terminal to migrate from the cellular network to the wireless local area network;

Wherein, the base station belongs to the cellular network.

2. The method according to claim 1, further comprising:

Obtain the load information of the current cell to which the user terminal belongs and/or the load information of the available access point, where the available access point is the access point of the available wireless local area network detected by the user terminal;

Wherein, the current cell is served by the base station, and the notification information is specifically used to instruct the user terminal to migrate from the base station of the cellular network to the available access point of the wireless local area network.

3. The method according to claim 1, further comprising:

Receive access point information sent by the user terminal, where the access point information includes: the access point identification of the available wireless local area network detected by the user terminal, or the available wireless local area network provided by the user terminal. One or more access point identifiers in .

4. The method according to claim 3, wherein the access point information further includes the signal quality of the access point corresponding to the access point identification of the available wireless local area network detected by the user terminal, or

The access point information also includes the signal quality of the access point corresponding to one or more access point identifiers in the available wireless local area network provided by the user terminal.

- 43 -

5. The method according to any one of claims 1 to 4, characterized in that before sending the notification information to the user terminal, it further includes:

Receive the request information for accessing the wireless local area network sent by the user terminal, and the request information for accessing the wireless local area network is used to request to migrate the user terminal from the cellular network to the wireless local area network.

6. The method according to claim 2, characterized in that the base station sends notification information to the user terminal, including:

When the load of the cellular network is higher than the first threshold, and/or when the load of the available access point is lower than the second threshold, the notification information is sent to the user terminal.

7. The method according to any one of claims 1 to 6, characterized in that: sending the notification information to the user terminal includes:

The notification information is carried in a Radio Resource Control Connection Reject RRC Connection Reject message and sent to the user terminal; or

The notification information is carried in a Radio Resource Control Connection Release message and sent to the user terminal; or

The notification information is carried in a Radio Resource Control Connection Reconfiguration RRC Connection Reconfiguration message and sent to the user terminal; or

The notification information is carried in a paging message and sent to the user terminal; or a new radio resource control RRC message is created, and the notification information is carried in the newly created RRC message and sent to the user terminal.

- 44 -

8. The method according to claim 1, further comprising:

Add the identification of the target access point to the notification information, so that the user terminal accesses the access point corresponding to the identification of the target access point according to the notification information;

The access point belongs to the wireless local area network.

9. The method according to any one of claims 1 to 8, further comprising: when detecting that the user terminal initiates a preset service, sending the notification information to the user terminal, wherein: The preset services are services stipulated in the protocol, or services pre-specified by the base station, or services specified in the user's subscription information, or services specified in the context of the user terminal.

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

The user's first configuration information is obtained from the mobility management entity MME, and the first configuration information is used to determine the preset service.

11. The method according to any one of claims 1 to 10, further comprising: obtaining the user's second configuration information from the MME, the second configuration information being used to determine the user's network migration criteria.

12. The method according to claim 3 or 4, further comprising:

Obtain the load information and/or signal quality of each access point in the access point information, and determine the priority information of the available access points based on the load information and/or signal quality;

The priority information is broadcast in a system message to facilitate the user terminal to migrate to the wireless local area network according to the priority information.

13. The method according to claim 3 or 4, further comprising:

- 45 - Obtain the load information and/or signal quality of each access point in the access point information, sort the access points according to the load information and/or signal quality, and obtain the sorting information;

The sorting information is sent to the user terminal, so that the user terminal migrates to the wireless local area network according to the sorting information.

14. A network migration method, characterized by including:

The user terminal receives notification information sent by the base station, where the notification information is used to instruct the user terminal to migrate from the cellular network to the wireless local area network;

The user terminal migrates from the cellular network to the wireless local area network according to the notification information; wherein, the base station belongs to the cellular network.

15. The method according to claim 14, further comprising:

Obtain the access point information of the available wireless local area network, and send the access point information to the base station; wherein the access point information includes the access point identification of the available wireless local area network; or the access point information Includes identification of one or more access points in the available wireless local area network.

16. The method according to claim 15, wherein the access point information also includes the signal quality of the access point corresponding to the access point identifier of the available wireless local area network, and/or the access point Load information that identifies the corresponding access point, or

The access point information also includes the signal quality of the access point corresponding to one or more access point identifiers of the available wireless local area network, and/or the load information of the access point corresponding to the access point identifier.

17. The method according to claim 15 or 16, characterized in that before obtaining the access point information of available wireless local area networks, it further includes:

- 46 - Detect the available wireless LAN access points.

18. The method according to claim 17, wherein the detecting the access point of the available wireless local area network specifically includes:

When the user terminal initiates a preset service, the access point of the available wireless LAN is detected. The preset service is a service specified by the protocol, a service predetermined by the base station, or a service specified by the application layer of the user terminal.

19. The method according to claim 15 or 16, further comprising:

Store access point information of a first access point, where the first access point is an access point of a wireless local area network that the user terminal has visited;

Store the cell identifier of the cellular network cell detected within the coverage of the first access point, and establish a mapping relationship between the first access point and the cell identifier;

The obtaining of access point information of available wireless local area networks includes:

Obtain the cell identity of the current cell to which the user terminal belongs, search for the access point identity of the first access point corresponding to the cell identity of the current cell according to the mapping relationship, and determine the access point information of the available wireless local area network.

20. The method according to claim 15 or 16, wherein the sending the access point information to the base station specifically includes:

When the user terminal initiates a preset service, the access point information is sent to the base station. The preset service is a service specified in the protocol, or a service pre-specified by the base station, or the user terminal application. Layer-specified business.

- 47 -

21. The method according to claim 15 or 16, characterized in that: obtaining access point information of available wireless local area networks and sending the access point information to the base station includes:

Determine the identification of the access point whose signal quality is higher than the preset threshold, determine the access point information according to the identification, and send the access point information to the base station.

22. The method according to claim 15 or 16, further comprising:

Sort the access points of the available wireless local area network according to the signal quality and/or load information of each access point, obtain the sorting information, and send the sorting information to the base station.

23. The method according to claim 14, characterized in that before receiving the notification information sent by the base station, it further includes:

The user terminal sends request information for accessing the wireless LAN to the base station, and the request information for accessing the wireless LAN is used to request the base station to migrate the user terminal from the cellular network to the wireless LAN.

24. The method according to claim 23, wherein the sending the request information for accessing the wireless local area network to the base station specifically includes:

When the user terminal initiates a preset service, it sends a request message for access to the wireless LAN to the base station. The preset service is a service specified by the protocol, a service pre-specified by the base station, or a service specified by the user terminal application layer. .

25. The method according to claim 14, wherein the notification information includes an identification of the target access point;

The user terminal migrates from the cellular network to the wireless local area network according to the notification information.

- 48 - network, including:

Access the target access point according to the identification of the target access point in the notification information, and migrate from the cellular network to the wireless local area network corresponding to the target access point.

26. The method of claim 14, further comprising:

Receive the priority information of the wireless LAN access point broadcast by the base station, and select the access point for access based on the priority information.

27. The method according to claim 14, further comprising:

Receive the sorting information sent by the base station, and select a wireless LAN access point for access based on the sorting information.

28. A base station, characterized by including:

A sending unit, configured to send notification information to the user terminal, where the notification information is used to instruct the user terminal to migrate from the cellular network to the wireless local area network;

Wherein, the base station belongs to the cellular network.

29. The base station according to claim 28, characterized in that, the base station further includes: an acquisition unit, configured to acquire the load information of the current cell to which the user terminal belongs and/or the load information of the available access points, the available access points The access point is an access point of an available wireless local area network detected by the user terminal;

- 49 -

30. The base station according to claim 28, characterized in that, the base station further includes: a receiving unit, configured to receive access point information sent by the user terminal, the access point information includes: the user terminal The detected access point identification of the available wireless local area network, or one or more access point identifications in the available wireless local area network provided by the user terminal.

31. The base station according to claim 30, characterized in that, the access point information received by the receiving unit also includes the access point corresponding to the access point identification of the available wireless local area network detected by the user terminal. signal quality, or

The access point information received by the receiving unit also includes the signal quality of the access point corresponding to one or more access point identifiers in the available wireless local area network provided by the user terminal.

32. The base station according to any one of claims 28 to 31, characterized in that, the receiving unit is also configured to receive request information for accessing a wireless local area network sent by the user terminal, and the request for accessing a wireless local area network The information is used to request the base station to migrate the user terminal from the cellular network to the wireless local area network.

33. The base station according to claim 29, characterized in that, the sending unit is specifically configured to when the load of the cellular network obtained by the obtaining unit is higher than a first threshold, and/or, when the load of the cellular network obtained by the obtaining unit When the load of the available access point is lower than the second threshold, the notification information is sent to the user terminal.

34. The base station according to any one of claims 28 to 33, wherein the sending unit is specifically configured to carry the notification information in a Radio Resource Control Connection Reject message and send it to the user terminal. ; or

The sending unit is also used to carry the notification information to the radio resource control connection interpretation RRC.

- 50 - Sent to the user terminal in a Connection Release message; or

The sending unit is further configured to carry the notification information in a Radio Resource Control Connection Reconfiguration RRC Connection Reconfiguration message and send it to the user terminal; or

The sending unit is also configured to carry the notification information in a paging message and send it to the user terminal; or

The sending unit is also configured to create a new radio resource control RRC message, and carry the notification information in the newly created RRC message and send it to the user terminal.

35. The base station according to any one of claims 28, characterized in that, the sending unit is further configured to add an identification of a target access point to the notification information, so that the user terminal performs the operation according to the notification information. Access the access point corresponding to the identification of the target access point;

The access point belongs to the wireless local area network.

36. The base station according to any one of claims 28 to 35, characterized in that, the sending unit is specifically configured to send the notification information to the user terminal when detecting that the user terminal initiates a preset service. , wherein the preset service is a service stipulated in the agreement, or a service pre-specified by the base station, or a service specified in the user's subscription information, or a service specified in the context of the user terminal.

37. The base station according to claim 36, wherein the obtaining unit is further configured to obtain the user's first configuration information from the mobility management entity MME, and the first configuration information is used to determine the preset service.

38. The base station according to any one of claims 28 to 37, characterized in that: the obtaining unit is further configured to obtain the second configuration information of the user from the MME, and the second configuration information is used to determine the network of the user.

- 51 - Network migration guidelines.

39. The base station according to claim 30 or 31, characterized in that, the base station further includes: a first processing unit, configured to obtain the load information and/or signal quality of each access point in the access point information. , determine the priority information of the available access point according to the load information and/or signal quality; the sending unit is also configured to broadcast the priority information determined by the first processing unit in a system message, so that The user terminal migrates to the wireless local area network according to the priority information.

40. The base station according to claim 30 or 31, characterized in that, the base station further includes: a second processing unit, configured to obtain the load information and/or signal quality of each access point in the access point information. , sort the access points according to the load information and/or signal quality to obtain sorting information; the sending unit is also used to send the sorting information obtained by the second processing unit to the user terminal, so that The user terminal migrates to the wireless local area network according to the sorting information.

41. A user terminal, characterized by: including:

A receiving unit configured to receive notification information sent by the base station, where the notification information is used to instruct the user terminal to migrate from the cellular network to the wireless local area network;

Wherein, the base station belongs to the cellular network.

42. The user terminal according to claim 41, further comprising:

An acquisition unit, used to acquire access point information of available wireless local area networks;

A sending unit, configured to send the access point information obtained by the obtaining unit to the base station;

- 52 - Wherein, the access point information includes an access point identifier of the available wireless local area network; or the access point information includes one or more access point identifiers in the available wireless local area network.

43. The user terminal according to claim 42, wherein the access point information obtained by the obtaining unit also includes the signal quality of the access point corresponding to the access point identification of the available wireless local area network, and/or load information of the access point corresponding to the access point identifier, or

The access point information obtained by the acquisition unit also includes the signal quality of the access point corresponding to one or more access point identifiers of the available wireless local area network, and/or the signal quality of the access point corresponding to the access point identifier. load information.

44. The user terminal according to claim 42 or 43, further comprising: a detection unit, configured to detect the access point of the available wireless local area network.

45. The user terminal according to claim 44, wherein the detection unit is specifically configured to detect the access point of the available wireless local area network when the user terminal initiates a preset service, and the preset service It is the service specified by the protocol, or the service pre-specified by the base station, or the service specified by the user terminal application layer.

46. The user terminal according to claim 42 or 43, further comprising: a storage unit configured to store access point information of a first access point, and the first access point is the user terminal. Access points of wireless LANs visited;

The storage unit is also used to store the cell identity of the cellular network cell detected within the coverage of the first access point, and the mapping relationship between the first access point and the cell identity;

The obtaining unit is specifically used to obtain the cell identity of the current cell to which the user terminal belongs.

- 53 - The mapping relationship stored in the storage unit searches for the access point identifier of the first access point corresponding to the cell identifier of the current cell, and determines the access point information of the available wireless local area network.

47. The user terminal according to claim 42 or 43, wherein the sending unit is specifically configured to send the access point information to the base station when the user terminal initiates a preset service, so The preset service is a service stipulated in a protocol, a service pre-specified by the base station, or a service specified by the user terminal application layer.

48. The user terminal according to claim 42 or 43, characterized in that,

The acquisition unit is specifically configured to determine the identification of an access point whose signal quality is higher than a preset threshold, and determine the access point information according to the identification;

The sending unit is configured to send the access point information determined by the obtaining unit to the base station.

49. The user terminal according to claim 42 or 43, wherein the processing unit is further configured to sort the access points of the available wireless local area network according to the signal quality and/or load information of each access point. , get sorting information;

The sending unit is used to send the sorting information obtained by the processing unit to the base station.

50. The user terminal according to claim 41, wherein the sending unit is further configured to send request information for access to a wireless local area network to the base station, and the request information for access to the wireless local area network is used to request the The base station migrates the user terminal from the cellular network to the wireless local area network.

51. The user terminal according to claim 50, wherein the sending unit is specifically configured to send a request letter for accessing the wireless local area network to the base station when the user terminal initiates a preset service.

- 54 - Information, the preset service is a service stipulated in the protocol, a service pre-specified by the base station, or a service specified by the user terminal application layer.

52. The user terminal according to claim 41, wherein the notification information received by the receiving unit includes the identification of the target access point;

The processing unit is specifically configured to access the target access point according to the identification of the target access point in the notification information, and migrate from the cellular network to the wireless local area network corresponding to the target access point. network.

53. The user terminal according to claim 41, wherein the receiving unit is further configured to receive the priority information of the wireless LAN access point broadcast by the base station;

The processing unit is specifically configured to select an access point for access according to the priority information.

54. The user terminal according to claim 41, characterized in that the receiving unit is also used to receive the sorting information sent by the base station;

The processing unit is specifically configured to select a wireless LAN access point for access according to the sorting information.

- 55 -