CN104105152A - Business migrating method, network side device and terminal - Google Patents

Abstract

The invention provides a business migrating method, a network side device and a terminal. The business migrating method comprises steps of determining whether connection resources bearing businesses between the terminal and the network side device, if yes, generating a business migrating order, transmitting the business migrating order to the terminal to enable the terminal to release the connection resources between the terminal and the network side device according to the business migrating order, and migrating the current business of the terminal to the WLAN network. The scheme of the invention can give part or all of the businesses of the current user to the WLAN to bear so as to reduce the load on the cellular network.

Description

A service migration method, network side equipment and terminal

technical field

The present invention relates to the communication field, in particular to a service migration method, network side equipment and terminal.

Background technique

WLAN (wireless local area network)/3GPP Radio Interworking (3GPP wireless network group) is a system that uses radio frequency (Radio Frequency RF) technology for data transmission. It enables the wireless local area network to use a simple access structure to allow users to realize a smooth network without network cables and without distance restrictions.

However, the current WLAN has the following problems: 1) The efficiency of the WLAN network deployed by the operator is low; 2) When the UE's business is offloaded from the cellular network to the overloaded WLAN network, the user experience is relatively poor; 3) Unnecessary WLAN networks Scanning may increase UE battery consumption.

WIFI is a standard of WLAN. WIFI is included in WLAN and belongs to a new technology using WLAN protocol. An optimized WIFI offloading solution should enable operators to strengthen the management and control of WLAN. Operators should consider the situation of WLAN when doing resource management of cellular networks; on the other hand, for cellular networks and WLANs, both Enhance the mobility and network selection of the access network, such as considering the UE's wireless link quality, backhaul link quality, load and other information.

When a user enters an area covered by a WLAN, the network side or the terminal will decide whether to use the WLAN for service distribution. Once necessary, some or all of the current user's services may be handed over to the WLAN to bear.

The current 3GPP protocol only allows the network side to release the RRC connection of the terminal, and does not support the process of the terminal actively releasing the RRC connection; in addition, the current protocol does not support the function of the terminal actively or passively releasing some services.

Contents of the invention

The technical problem to be solved by the present invention is to provide a service migration method, device and equipment. When a user enters an area covered by WLAN, the network side or the terminal will decide whether to use WLAN for service distribution. Part or all of the user's business is delivered to the WLAN to reduce the burden on the cellular network.

In order to solve the above technical problems, an embodiment of the present invention provides a service migration method, which is applied to a network side device, including:

Determining whether it is necessary to release connection resources for carrying services between the terminal and the network side device, and obtaining a judgment result;

If the judgment result indicates that connection resources between the terminal and the network side device need to be released, generating a service migration instruction;

Sending the service migration instruction to the terminal, so that the terminal releases connection resources with the network side device according to the service migration instruction, and migrates the current service of the terminal to the WLAN network.

Among them, the steps of generating the business migration instruction include:

In the link release signaling of connection resources, the bits used to indicate the instruction to migrate all the current services of the terminal to the WALN network, the bits used to indicate the corresponding frequency point information when the terminal accesses the WLAN network, and the The service migration instruction is generated based on the bits representing the corresponding access point information when the terminal accesses the WLAN network.

Among them, the steps of generating the business migration instruction include:

In the link release signaling of the connection resource, adding bits used to indicate an instruction to migrate the current service of the terminal to the WALN network;

In the frequency point information in the redirection information, add bits used to indicate the corresponding frequency point when the terminal accesses the WLAN network;

In the different system information, add bits used to indicate the corresponding access point information when the terminal accesses the WLAN network;

The service migration instruction is generated according to the link release signaling with added bits, the redirection information, and the different system information.

Wherein, after sending the service migration instruction to the terminal, it also includes:

releasing all services on the radio resource control RRC connection resource between the terminal and the network side device to the WLAN network.

Wherein, after sending the service migration instruction to the terminal, it also includes:

releasing part of services of the terminal to the WLAN network.

Wherein, the step of releasing part of the services of the terminal to the WLAN network includes:

Add new indication information in the radio resource control RRC connection reconfiguration message, the new indication information is used to indicate the data radio bearer DRB where the service on the WLAN network is to be switched to;

According to the new indication information, the service to be switched to the DRB on the WLAN network is switched to the WLAN network.

Wherein, the step of determining whether it is necessary to release the connection resource of the bearer service between the terminal and the network side device includes:

According to the network selection policy information reported by the terminal and the network load and signal quality of the WLAN network and the cellular network, it is determined whether it is necessary to release connection resources for carrying services between the terminal and the network side device.

Embodiments of the present invention also provide a service migration method applied to a terminal, including:

Sending a release request to the network side device to release the connection resource carrying the service between the terminal and the network side device; wherein the release request carries release reason information;

receiving a feedback instruction returned by the network side device whether to allow the release of connection resources between the terminal and the network side device;

If the feedback instruction allows the release of the connection resource, release the connection resource between the terminal and the network side device according to the feedback instruction, and migrate the current service of the terminal to the WLAN network; otherwise, do not freed.

Wherein, the release reason information includes: an instruction indicating that the terminal initiates the migration of the service performed on the connection resource to the WALN network;

If the feedback instruction allows the release of the connection resource, the feedback instruction also includes: release reason information indicating that the terminal initiates migration of services performed on the connection resource to the WALN network.

Wherein, if the feedback instruction does not allow the connection resource to be released, the feedback instruction includes: reason information that the connection resource is not allowed to be released.

Wherein, the step of migrating the current service of the terminal to the WLAN network includes:

Migrating all services carried on the radio resource control RRC connection resource between the terminal and the network side device to the WLAN network.

Wherein, the step of migrating the current service of the terminal to the WLAN network includes:

Migrate part of the services of the terminal to the WLAN network.

Wherein, the step of migrating part of the services of the terminal to the WLAN network includes:

Initiate a data radio bearer DRB release request to the network side device;

receiving a link connection reconfiguration instruction fed back by the network side device according to the release request, where the link connection reconfiguration instruction carries DRB information to be migrated to the WLAN network;

Migrate the service to be migrated to the WLAN network to the WLAN network according to the DRB information to be migrated to the WLAN network.

Wherein, the step of migrating part of the services of the terminal to the WLAN network includes:

Initiate a bearer resource release request to the mobility management entity MME, which carries the bearer identifier and indicates: delete the filtered data packet from the existing service flow template, and add an indication to go to the WLAN;

receiving a bearer resource feedback instruction from the MME,

Migrate the service to be migrated to the WLAN network to the WLAN network according to the bearer resource feedback instruction.

Embodiments of the present invention also provide a network side device, including:

A determination module, configured to determine whether it is necessary to release the connection resources for carrying services between the terminal and the network side device, and obtain a judgment result;

An instruction generation module, configured to generate a service migration instruction when the judgment result indicates that connection resources between the terminal and the network side device need to be released;

A sending module, configured to send the service migration instruction to the terminal, so that the terminal releases connection resources with the network side device according to the service migration instruction, and migrates the current service of the terminal to the WLAN network.

Wherein, the above-mentioned network side equipment also includes:

A network-side service migration module, configured to release all services on the radio resource control RRC connection resource between the terminal and the network-side device to the WLAN network; or to release part of the services of the terminal to the WLAN network.

Embodiments of the present invention also provide a terminal, including:

A sending module, configured to send a release request to the network side device to release the connection resource of the bearer service between the terminal and the network side device; wherein, the release request carries release cause information;

A receiving module, configured to receive a feedback instruction returned by the network side device whether to allow the release of connection resources between the terminal and the network side device;

A terminal-side service migration module, configured to release the connection resource between the terminal and the network-side device according to the feedback instruction if the feedback instruction allows the release of the connection resource, and transfer the current service of the terminal to Migrate to WLAN network, otherwise, do not release.

Wherein, when the terminal-side service migration module migrates the current service of the terminal to the WLAN network, it is specifically used to migrate all services carried on the radio resource control RRC connection resource between the terminal and the network-side device to the WLAN network; or used to migrate part of the current services of the terminal to the WLAN network.

Wherein, before sending the release request to the network side device to release the connection resource of the bearer service between the terminal and the network side device, it further includes:

According to the network selection strategy issued by the network side device, and the network load and signal quality of the WLAN network and the cellular network, determine whether to send to the network side device a message to release the connection resource of the bearer service between the terminal and the network side device Release request.

The beneficial effects of above-mentioned technical scheme of the present invention are as follows:

In the above solution, by causing the network side or the terminal to release the connection resource with the network side device according to the service migration instruction, and migrate all the services carried by the RRC to the WLAN network, or migrate some services carried by the DRB For a WLAN network, when a user enters an area covered by a WLAN, the network side or the terminal will decide whether to use WLAN for business offloading. Once necessary, some or all of the current user's business may be handed over to the WLAN to bear, thereby reducing the burden on the user. The burden of the cellular network.

Description of drawings

Fig. 1 is a flow chart of the service migration method of the network side equipment of the present invention;

Fig. 2 is a flow chart of the service migration method of the terminal of the present invention;

Fig. 3 is a structural block diagram of the network side equipment of the present invention;

FIG. 4 is a structural block diagram of a terminal of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

As shown in Figure 1, the embodiment of the present invention provides a service migration method, which is applied to network side equipment, including:

Step 11, determining whether it is necessary to release the connection resources for carrying services between the terminal and the network side equipment, and obtaining a judgment result;

Step 12, if the judgment result indicates that the connection resource between the terminal and the network side device needs to be released, generate a service migration instruction;

Step 13, sending the service migration instruction to the terminal, so that the terminal releases connection resources with the network side device according to the service migration instruction, and migrates the current service of the terminal to the WLAN network.

In the above embodiments of the present invention, the network side releases connection resources with the network side device according to the service migration instruction, and migrates all services carried on the RRC to the WLAN network, or migrates some services on the DRB To WLAN, when a user enters an area covered by WLAN, the network side or the terminal will decide whether to use WLAN for business offloading. Once necessary, some or all of the current user's business may be handed over to WLAN to bear, thus reducing the burden of cellular traffic. Net burden.

Wherein, in the above-mentioned embodiment, in step 11, specifically, it may be determined whether it is necessary to release the connection between the terminal and the network-side device according to the network selection policy information reported by the terminal, the network load and signal quality of the WLAN network and the cellular network, and other information. Connection resources for bearing services.

Specifically, the terminal reports to the network device (such as a base station) whether it has the ability to support ANDSF (AccessNetwork Discovery Support Functions, access network discovery and selection function unit).

Specifically, when performing terminal capability reporting (UE capacity information), it can be indicated by using 1 bit, and the corresponding capability indication can be added to the existing IE UE-EUTRA-Capability; attach (attach connection) or perform TAU (tracking area) on the terminal updating, tracking area update)/RAU, report this capability information. In addition, the UE in the connected state can also use the RRC message to report; the base station asks the UE for the ANDSF policy; the terminal reports the ANDSF policy; the base station configures further measurement requirements for the terminal based on the ANDSF policy, such as measuring the signal quality of the AP whose SSID is CMCC, Network load, etc.; the terminal reports the measurement results; according to the network selection policy information reported by the terminal (such as the above-mentioned ANDSF policy) and the network load and signal quality of the WLAN network and the cellular network, etc., decide whether to release the terminal and the network side device The connection resources between bearer services.

Wherein, in the above embodiment, in step 12, the first way of generating the service migration instruction includes:

In the link release signaling of connection resources, the bits used to indicate the instruction to migrate all the current services of the terminal to the WALN network, the bits used to indicate the corresponding frequency point information when the terminal accesses the WLAN network, and the The service migration instruction is generated based on the bits representing the corresponding access point information when the terminal accesses the WLAN network.

This method is applicable to the LTE system. Specifically, if the network side equipment such as the base station decides to release the current RRC connection of the UE (terminal), it will send the RRC CONNECTION RELEASE (link release) signaling (existing signaling) to the UE. And introduce a new release reason (transfer the UE to the WLAN network) and the corresponding frequency point and AP information into the signaling.

For the LTE system, add 1 bit to the Release Cause (that is, the bit used to indicate the instruction to migrate all the current services of the terminal to the WALN network) to indicate WLAN offloading (WLAN shunt) or WLAN LTE interworking (WLAN LTE interworking) operation), or LTE WLAN interworking (LTE WLAN interoperability), or WLAN3GPP interworking (WLAN3GPP interoperability), or 3GPP WLAN interworking (3GPP WLAN interoperability), etc. When the bit position is 1, it means that the UE is handed over to the WLAN network, otherwise it is not handed over.

And add the following frequency point information (that is, the above-mentioned bits used to indicate the corresponding frequency point information when the terminal accesses the WLAN network):

RedirectedCarrierInfo::=CHOICE{

WLAN ARFCN-ValueWLAN or CarrierFreqsWLAN,}

Wherein, ARFCN-ValueWLAN or CarrierFreqsWLAN can be represented by at least one bit, and if it is a character string, it needs to be represented by multiple bits.

The AP information of the WLAN can also be added (that is, the above-mentioned bits used to indicate the corresponding access point information when the terminal accesses the WLAN network):

CellInfoWLAN::=SEQUENCE{

APID APID (can be AP ID, MAC address, etc.),

carrierFreq-WLAN ARFCN-ValueWLAN or CarrierFreqsWLAN or channel-WLAN ChannelsWLAN,

WLAN Beacon OCTET STRING}.

Wherein, carrierFreq-WLAN, ARFCN-ValueWLAN or CarrierFreqsWLAN or channel-WLAN, ChannelsWLAN can be represented by at least one bit, and if it is a character string, it needs to be represented by multiple bits.

Wherein, in the above embodiment, in step 12, the second way of generating the service migration instruction includes:

Step 121, in the link release signaling of the connection resource, add a bit used to indicate an instruction to migrate the current service of the terminal to the WALN network;

Step 122, in the frequency point information in Redirection Info (redirection information), add the bit for indicating the corresponding frequency point when the terminal accesses the WLAN network;

Step 123, in Inter-RAT info (different system information), increase the bit for indicating the corresponding access point information when the terminal accesses the WLAN network;

Step 124: Generate the service migration instruction according to the link release signaling, the Redirection Info, and the Inter-RAT info with added bits.

This method is adapted to the UMTS system. Specifically, the reason information (that is, the above-mentioned first bit) is added to the Release Cause. The frequency point and RAT information are placed in the Frequency info and Inter-RAT info (which can carry the ID, frequency point, channel and other information of the target WLAN AP) in the Redirection Info.

Wherein, in the above embodiment, after step 13, it may also include:

Step 14, releasing all services on the radio resource control RRC connection resources between the terminal and the network side device to the WLAN network. or

Step 15, releasing part of services of the terminal to the WLAN network.

Wherein, step 15 specifically includes:

Step 141, adding new indication information in the RRC (radio resource control) connection reconfiguration message, the new indication information is used to indicate the DRB (data radio bearer) where the service on the WLAN network is to be switched to;

Step 142: According to the new indication information, switch the service to be switched to the DRB on the WLAN network to the WLAN network.

Specifically, if the network side decides to release some services to the WLAN, add new indication information in the Radio Resource Config Dedicated of the RRC connection reconfiguration message, and cooperate with drb-ToReleaseList to indicate which DRBs (data radio bearers) are If it is released due to handover to WLAN, if a bitmap is used to indicate that the bit position of the corresponding DRB is 1, it means that the corresponding DRB is to be handed over to the WLAN.

Such as: DRB-ToWLANList::=SEQUENCE (SIZE (1..maxDRB)) OFDRB-Identity.

To sum up, in the above-mentioned embodiments of the present invention, the network-side device releases connection resources with the network-side device according to the service migration instruction, and migrates the current service of the terminal to the WLAN network. In the area covered by WLAN, the network side or the terminal will decide whether to use WLAN for service offloading. Once necessary, some or all of the current user's services may be carried by WLAN, thereby reducing the burden on the cellular network.

As shown in Figure 2, the embodiment of the present invention also provides a service migration method applied to a terminal, including:

Step 21, sending a release request to the network-side device to release the connection resource of the bearer service between the terminal and the network-side device; wherein, the release request carries release reason information;

Step 22, receiving a feedback instruction returned by the network-side device whether to allow the release of connection resources for carrying services between the terminal and the network-side device;

Step 23, if the feedback instruction allows the release of the connection resource, release the connection resource between the terminal and the network side device according to the feedback instruction, and migrate the service carried on the connection resource to the WLAN Networks, otherwise, are not released.

In this embodiment, the terminal releases connection resources with the network side device according to the service migration instruction, and migrates the current service of the terminal to the WLAN network. When the user enters an area covered by the WLAN, the network side or The terminal will decide whether to use WLAN for business offloading, and if necessary, some or all of the current user's business may be handed over to the WLAN to carry, thereby reducing the burden on the cellular network.

Wherein, before step 21, it may also include:

The terminal determines whether to send a message to the network side device to release the bearer service between the terminal and the network side device according to the network selection policy delivered by the network side device, and information such as the network load and signal quality of the WLAN network and the cellular network. A release request for connection resources.

Specifically, based on the previously received ANDSF policy information, if the network side decides to let the terminal make the decision, the network side device will issue the network selection policy of the wireless side, the load threshold of the cellular network and WLAN, and the wireless network of the two networks to the terminal. Signal quality threshold, etc. The terminal determines whether to send a release request to the network side device to release the connection resource carrying the service between the terminal and the network side device according to the information, so as to finally migrate the service to the WLAN.

Wherein, the release reason information includes: an instruction indicating that the terminal initiates the migration of the service performed on the connection resource to the WALN network;

If the feedback instruction allows the release of the connection resource, the feedback instruction also includes: release reason information indicating that the terminal initiates migration of services performed on the connection resource to the WALN network.

Wherein, if the feedback instruction does not allow the connection resource to be released, the feedback instruction includes: reason information that the connection resource is not allowed to be released.

Specifically, if the terminal decides to disconnect the current RRC connection with the 3GPP network (cellular network), it needs to send an RRC connection release request RRC CONNECTION RELEASEREQUEST (RRC link release request, newly introduced signaling) to the base station, and The reason carried in it is the reason information that the UE wants to switch the current service to the WLAN, that is, the same as the ReleaseCause mentioned in 1 above. After receiving the request, the base station decides whether to allow it. If it is allowed, it will feed back RRC CONNECTIONRELEASE (that is, the above-mentioned feedback command for allowing release), where the ReleaseCause is set the same as the request; if the base station does not allow the terminal to disconnect the RRC connection, it will feed back RRC CONNECTIONRELEASE REJECT (Feedback instructions that do not allow release, newly introduced signaling), which can carry the reasons for rejection, such as the arrival of services with high QoS requirements in the following lines; another candidate solution is that the UE will implement the timer within a certain period of time. If no feedback from the base station is received within ), it is considered that the base station does not allow it.

Wherein, in the above embodiment, in step 23, specifically, it may be: migrating all services carried on the radio resource control RRC connection resource between the terminal and the network side device to the WLAN network; or Part of the services of the terminal are migrated to the WLAN network. Wherein, the step of migrating part of the services of the terminal to the WLAN network includes:

Step 231, initiate a DRB release request to the network side device;

Step 232, receiving a link connection reconfiguration instruction fed back by the network side device according to the release request, the link connection reconfiguration instruction carrying DRB information to be migrated to the WLAN network;

Step 233: Migrate the service to be migrated to the WLAN network to the WLAN network according to the DRB information to be migrated to the WLAN network.

This method is on the air interface side: 1) The UE needs to initiate a DRB (data radio bearer) release request to the network side, such as RRC CONNECTION MIDIFICATION, such as using the above bitmap to indicate the DRB to be released, and explain why it wants to switch to WLAN up; 2) The base station feeds back the RRC connection reconfiguration, in which it indicates the DRB allowed to the WLAN.

Wherein, the step of migrating part of the services of the terminal to the WLAN network may also be implemented in the following manner, specifically including:

Step 234, initiate a bearer resource release request to the mobility management entity MME, which carries the bearer identifier, and indicates: delete the filtered data packet from the existing service flow template, and add an indication to go to the WLAN;

Step 235, receiving a bearer resource feedback instruction from the MME,

Step 236: Migrate the service to be migrated to the WLAN network to the WLAN network according to the bearer resource feedback instruction.

This method belongs to the NAS layer solution: 1) The terminal initiates a BEARERRESOURCE MODIFICATION REQUEST (bearer resource modification request) to the MME (Mobile Management Entity), which carries the EPSbearer identity (core network bearer identity), and instructs "Delete packet filters from existingTFT(traffic flow template)" (delete the packet filter from the existing service flow template), which is an instruction to go to WLAN based on the existing ESM (EPS Session Management) reason; 2) MME feedback DEACTIVATE EPS BEARER CONTEXT REQUEST (deactivate core network bearer context request), or feedback BEARER RESOURCE MODIFICATION REJECT (bearer resource modification rejection).

In the above embodiments of the present invention, the terminal side decides whether to release the connection resource with the cellular network, releases the connection resource with the network side device according to the service migration instruction, and migrates the current service of the terminal to the In a WLAN network, when a user enters an area covered by a WLAN, the network side or the terminal will decide whether to use the WLAN for business offloading. Once necessary, some or all of the current user's business may be handed over to the WLAN to bear, thereby reducing cellular Net burden.

Due to the advantages of operating in the 2.4G license-free frequency band, low equipment cost, easy deployment, and high data rate, the WLAN network has been considered as an important means of offloading cellular network services. Using the WLAN network to offload cellular network services, especially low-value services such as web browsing, QQ, and msn, can effectively reduce the burden on the cellular network, improve indoor coverage, and provide high-speed access, thereby improving user experience.

As shown in Figure 3, the embodiment of the present invention also provides a network side device, including:

A determining module 31, configured to determine whether it is necessary to release the connection resources for carrying services between the terminal and the network side device, and obtain a judgment result;

An instruction generation module 32, configured to generate a service migration instruction when the judgment result indicates that the connection resource between the terminal and the network side device needs to be released;

A sending module 33, configured to send the service migration instruction to the terminal, so that the terminal releases the connection resource with the network side device according to the service migration instruction, and transfers the service carried on the connection resource Migrate to WLAN network.

The instruction generation module 32 is specifically used to, in the link release signaling, add bits representing instructions for migrating the service of the terminal to the WALN network, bits representing the corresponding frequency point information when the terminal accesses the WLAN network, and The bits representing the corresponding access point information when the terminal accesses the WLAN network generate the service migration instruction.

The instruction generating module 32 can also be specifically used to, in the link release signaling, add bits used to indicate the instruction to migrate the service of the terminal to the WALN network; the frequency point information in RedirectionInfo (redirection information) , add the bit used to indicate the corresponding frequency point when the terminal accesses the WLAN network; in (different system information) Inter-RAT info, add the bit used to indicate the corresponding access point information when the terminal accesses the WLAN network bit; generate the service migration instruction according to the link release signaling, the RedirectionInfo and the Inter-RAT info after the bit is added.

Among them, the above-mentioned network side equipment also includes:

A network-side service migration module 34, configured to migrate all services carried on the RRC between the terminal and the network-side device to the WLAN network; or migrate part of the terminal's services to the WLAN network.

The network side service migration module 34 is specifically used to add new indication information in the RRC connection reconfiguration message, the new indication information is used to indicate the DRB where the service on the WLAN network is to be switched to; according to the new indication information , switching the service on the DRB to be switched to the WLAN network to the WLAN network.

It should be noted that: the network side device is a device corresponding to the above-mentioned service migration method applied to the network side device. The technical effect will not be repeated here.

As shown in FIG. 4, an embodiment of the present invention also provides a terminal, including:

The sending module 41 is configured to send a release request to the network side device to release the connection resource of the bearer service between the terminal and the network side device; wherein, the release request carries release cause information;

A receiving module 42, configured to receive a feedback instruction returned by the network side device whether to allow the release of connection resources between the terminal and the network side device;

A terminal-side service migration module 43, configured to release the connection resource between the terminal and the network-side device according to the feedback instruction if the feedback instruction allows the release of the connection resource, and transfer the service of the terminal Migrate to WLAN network, otherwise, do not release.

The release reason information includes: indicating that the terminal initiates an instruction to migrate the service of the terminal to the WALN network;

If the feedback instruction allows the release of the connection resource, the feedback instruction also includes: release reason information indicating that the terminal initiates the service migration of the terminal to the WALN network. If the feedback instruction does not allow the release of the RRC, the feedback instruction includes: reason information that the release is not allowed.

Wherein, when the terminal-side service migration module 43 migrates the service of the terminal to the WLAN network, it is specifically used to migrate all the services carried on the RRC between the terminal and the network-side device to the WLAN network ; Or migrate some services of the terminal to the WALN network.

The terminal side service migration module 43 is specifically configured to initiate a DRB release request to the network side device; receive a link connection reconfiguration instruction fed back by the network side device according to the service bearer release request, and the link connection reconfiguration The instruction carries DRB information to be migrated to the WLAN network; according to the DRB information to be migrated to the WLAN network, the service to be migrated to the WLAN network is migrated to the WLAN network.

The terminal-side service migration module 43 can also be specifically configured to initiate a bearer resource release request to the mobility management entity MME, which carries a bearer identifier and indicates: delete the filtered data packet from the existing service flow template, and add an indication to go to the WLAN; Receive a bearer resource feedback instruction from the MME, and migrate services to be migrated to the WLAN network to the WLAN network according to the bearer resource feedback instruction.

It should be noted that: the terminal is a device corresponding to the above-mentioned service migration method applied to the terminal, and all the implementation means in the above-mentioned method embodiment are applicable to the embodiment of the terminal, and can also achieve the same technical effect. Let me repeat.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (19)

1. a business migration method, is applied to network equipment, it is characterized in that, comprising:

The connection resource that determines whether to discharge the bearer service between terminal and described network equipment, obtains judged result;

If when described judged result represents to discharge the connection resource between terminal and described network equipment, generate business migration instruction;

Send described business migration instruction to described terminal, make described terminal discharge the connection resource between described network equipment according to described business migration instruction, and by business migration current described terminal to wlan network.

2. business migration method according to claim 1, is characterized in that, the step that generates business migration instruction comprises:

In the link release signaling of connection resource, increase for represent by whole business migrations current terminal to the bit of the instruction of WALN network, when representing terminal access wlan network corresponding frequency point information bit and when representing that terminal accesses wlan network the bit of corresponding access-in point information, generate described business migration instruction.

3. business migration method according to claim 1, is characterized in that, the step that generates business migration instruction comprises:

In the link release signaling of connection resource, increase for representing the bit to the instruction of WALN network by business migration current described terminal;

In frequency point information in redirection information, increase the bit of frequency corresponding while being used for representing terminal access wlan network;

In different system information, increase the bit of access-in point information corresponding while being used for representing terminal access wlan network;

According to having increased described link release signaling, described redirection information and the different system information after bit, generate described business migration instruction.

4. business migration method according to claim 1, is characterized in that, sends described business migration instruction and also comprises after to described terminal:

The whole business on the radio resource control RRC connection resource between described terminal and described network equipment of discharging are to described wlan network.

5. business migration method according to claim 1, is characterized in that, sends described business migration instruction and also comprises after to described terminal:

Discharge the partial service of described terminal to described wlan network.

6. business migration method according to claim 5, is characterized in that, the partial service that discharges described terminal comprises to the step of described wlan network:

Connect in reallocation message and increase new indication information in radio resource control RRC, described new indication information is used to indicate the business place Data Radio Bearer DRB that will be switched on wlan network;

According to described new indication information, the business that will be switched to the DRB carrying on wlan network is switched to described wlan network.

7. business migration method according to claim 1, is characterized in that, determines whether that the step of the connection resource that need to discharge the bearer service between terminal and described network equipment comprises:

According to network load and the signal quality of the network selection policy information of terminal to report and wlan network and Cellular Networks, determine whether to discharge the connection resource of the bearer service between terminal and described network equipment.

8. a business migration method, is applied to terminal, it is characterized in that, comprising:

Send the releasing request of the connection resource that discharges the bearer service between described terminal and described network equipment to network equipment; Wherein, in described releasing request, carry release cause information;

Receive the feedback command that whether allows to discharge the connection resource between described terminal and described network equipment that described network equipment returns;

If described feedback command allows to discharge described connection resource, discharge the connection resource between described terminal and described network equipment according to described feedback command, and by business migration current described terminal to wlan network, otherwise, do not discharge.

9. business migration method according to claim 8, is characterized in that, described release cause information comprises: represent described terminal initiation instruction to WALN network by the business migration carrying out on described connection resource;

If described feedback command allows to discharge described connection resource, described feedback command also comprises: represent that described terminal initiates by the business migration carrying out on described connection resource the release cause information to WALN network.

10. business migration method according to claim 8, is characterized in that, if described feedback command does not allow to discharge described connection resource, described feedback command comprises: the cause information that does not allow release.

11. business migration methods according to claim 8, is characterized in that, business migration current described terminal is comprised to the step of wlan network:

The whole business migrations that carry on radio resource control RRC connection resource between described terminal and described network equipment are arrived to described wlan network.

12. business migration methods according to claim 8, is characterized in that, business migration current described terminal is comprised to the step of wlan network:

The partial service of described terminal is moved to described wlan network.

13. business migration methods according to claim 12, is characterized in that, the step that the partial service of described terminal is moved to described wlan network comprises:

Initiate Data Radio Bearer DRB releasing request to described network equipment;

Receive described network equipment according to the link connection reconfiguration instructions of described releasing request feedback, described link connection reconfiguration instructions is carried the DRB information that will move to wlan network;

According to the described DRB information that will move to wlan network, will move to the business migration of wlan network to described wlan network.

14. business migration methods according to claim 12, is characterized in that, the step that the partial service of described terminal is moved to described wlan network comprises:

Initiate bearing resource releasing request to mobile management entity MME, wherein carry bearing identification, and instruction: from the traffic flow template existing, delete filtering data bag, increase is the instruction of WLAN;

Receive the bearing resource feedback command of MME,

According to described bearing resource feedback command, will move to the business migration of wlan network to described wlan network.

15. business migration methods according to claim 8, is characterized in that, the releasing request that sends the connection resource that discharges the bearer service between described terminal and described network equipment to network equipment also comprises before:

The network selection strategy issuing according to network equipment, and the network load of wlan network and Cellular Networks and signal quality, determine whether to the releasing request of the connection resource of the bearer service between the network equipment transmission described terminal of release and described network equipment.

16. 1 kinds of network equipments, is characterized in that, comprising:

Determination module, for determining whether to discharge the connection resource of the bearer service between terminal and described network equipment, obtains judged result;

Instruction generation module, when representing to discharge the connection resource between terminal and described network equipment in described judged result, generates business migration instruction;

Sending module, for sending described business migration instruction to described terminal, makes described terminal discharge the connection resource between described network equipment according to described business migration instruction, and by business migration current described terminal to wlan network.

17. network equipments according to claim 16, is characterized in that, also comprise:

Network side business migration module, for discharging whole business on the radio resource control RRC connection resource between described terminal and described network equipment to described wlan network; Or arrive described wlan network for the partial service that discharges described terminal.

18. 1 kinds of terminals, is characterized in that, comprising:

Sending module, for sending the releasing request of the connection resource that discharges the bearer service between described terminal and described network equipment to network equipment; Wherein, in described releasing request, carry release cause information;

Receiver module, the feedback command that whether allows to discharge the connection resource between described terminal and described network equipment returning for receiving described network equipment;

Terminal side service transferring module, if allow to discharge described connection resource for described feedback command, discharge the connection resource between described terminal and described network equipment according to described feedback command, and by business migration current described terminal to wlan network, otherwise, do not discharge.

19. terminals according to claim 18, it is characterized in that, described terminal side service transferring module is by business migration current described terminal during to wlan network, specifically for by the whole business migrations that carry on the radio resource control RRC connection resource between described terminal and described network equipment to described wlan network; Or for partial service current described terminal is moved to wlan network.