WO2011054320A1

WO2011054320A1 - Method, device and system for transferring core network internet protocol service

Info

Publication number: WO2011054320A1
Application number: PCT/CN2010/078531
Authority: WO
Inventors: 关止; 陈国乔; 王睿; 刘娟
Original assignee: 华为终端有限公司
Priority date: 2009-11-09
Filing date: 2010-11-09
Publication date: 2011-05-12
Also published as: CN102056347B; CN102056347A

Abstract

Embodiments of the invention provide a method, device and system for transferring a core network internet protocol (IP) service. The method includes: receiving an attachment request message forwarded by a base station or an access gateway which is initiated by a user equipment, and local IP export capability indication information of the base station or the access gateway; determining, according to local IP access (LIPA) subscription information of the user equipment and the local IP export capability indication information, whether the user equipment is allowed to perform LIPA; if so, sending an attachment accept message carrying the LIPA indication information to the base station or the access gateway; receiving a handover request message carrying LIPA bearer request information sent by the base station or the access gateway; and establishing a local IP bearer between a packet data network gateway and a serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request message and the name of an access point to realize a local transfer of a core network IP service. A corresponding device and system are also provided.

Description

Method, device and system for transferring core network IP service

This application claims the priority of the Chinese patent application filed on November 9, 2009 by the Chinese Patent Office, application number 200910110044.9, and the invention name is "a method, device and system for transferring core network IP services." This is incorporated herein by reference.

The present invention relates to the field of mobile communication technologies, and in particular, to a method, device and system for transferring IP services of a core network. Background technique

3GPP proposes an access service based on H (e) NB (Home (Evolved) Base Station), which can provide higher data transmission rate by deploying H (e) NB in homes, shopping malls or enterprises. Smaller delays while reducing operator operating costs. According to the agreement between the network operator and the H (e) NB owner, H (e) NB can be configured as Close, Hybr id and Open.

For hybrid H (e) NB access mode, the network can reduce the communication rate established by non-CSG members in order to ensure the communication of CSG members; the network can also adopt different access control policies for CSG members and non-CSG members.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: The prior art does not fully consider the LIPA (Loca l IP Acces s, local IP access) capability of the home base station itself, and does not provide a The home base station's own IPPA capability is used to perform the home network local IP transfer method on the core network IP service without changing the RAN. Summary of the invention

Embodiments of the present invention provide a method, device, and system for transferring IP services of a core network to solve the LIPA transfer problem of core network IP services.

In one aspect, a method for transferring an IP service of a core network is provided, including: receiving, by a base station or an access gateway, an attach request message initiated by a user equipment, and indication information of a local IP egress capability of the base station or the access gateway; Determining, by the user equipment, the local IP access LIPA subscription information and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message to the base station or the access gateway, The attach accept message carries the LIPA indication information, and receives the handover request message sent by the base station or the access gateway, where the handover request message carries LIPA bearer request information; according to the address of the base station or the access gateway, the LIPA bearer Request information and access point name establish local IP bearer between the packet data network gateway and the service gateway of the base station or access gateway Loaded to achieve local migration of core network IP services.

On the other hand, another method for transferring the IP service of the core network is provided, including: receiving, by the base station or the access gateway, an attach request message initiated by the user equipment, and indicating the local IP egress capability of the base station or the access gateway. Determining, according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message carrying LIPA indication information to the base station Or accessing the gateway, so that the base station or the access gateway sends the attach accept message to the user equipment; receiving a request bearer resource modification message or an attach request message that is sent by the user equipment and carrying the LIPA bearer request information; Establishing a local IP address between the packet data network gateway and the monthly service gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name to implement the core network IP Local migration of business.

In one aspect, a device for transferring IP services of a core network is provided, including:

The attach request message receiving module is configured to: receive an attach request message initiated by the user equipment and forwarded by the base station or the access gateway, and indication information of a local IP egress capability of the base station or the access gateway;

a determining module, configured to determine, according to the local IP access LIPA subscription information of the user equipment, and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA;

The attach accept message sending module is configured to: if the result determined by the determining module is allowed, send an attach accept message to the base station or the access gateway, where the attach accept message carries LIPA indication information; and the handover request message receiving module: And receiving, by the base station or the access gateway, a handover request message, where the handover request message carries LIPA bearer request information;

Establishing a bearer module: configured to establish a local IP between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name Realize local migration of core network IP services.

On the other hand, another device for transferring core network IP services is provided, including:

An attach accept message sending module: configured to send an attach accept message carrying the LIPA indication information to the base station or the access gateway, if the result determined by the determining module is allowed, so that the base station or the access gateway An attach accept message is sent to the user equipment; a handover request message receiving module: a request bearer resource modification message or an attach request message for carrying the LIPA bearer request information sent by the user equipment;

In one aspect, a system for transferring IP services of a core network includes a base station and/or a base station gateway, a device for transferring an IP service of a core network, and a user equipment, where the device for transferring an IP service of a core network is used to receive a base station or an access gateway. The forwarded request message initiated by the user equipment, and the indication information of the local IP egress capability of the base station or the access gateway; determining, according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information Whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message to the base station or the access gateway, where the attach accept message carries LIPA indication information; receiving a handover request message sent by the base station or the access gateway, The handover request message carries LIPA bearer request information; according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name, the packet data network gateway and the service gateway of the base station or the access gateway Local IP is set up to implement local migration of core network IP services.

On the other hand, another system for transferring IP services of a core network includes a base station and/or a base station gateway, a device for transferring IP services of a core network, and a user equipment, where the device for transferring IP services of the core network is used for receiving a base station or a connection. An attach request message initiated by the user equipment forwarded by the gateway, and indication information of the local IP egress capability of the base station or the access gateway; accessing the LIPA subscription information and the local IP egress capability indication information according to the local IP address of the user equipment Determining whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message carrying the LIPA indication information to the base station or the access gateway, so that the base station or the access gateway sends the attach accept message to the Receiving a request bearer resource modification message or an attach request message that is sent by the user equipment and carrying the LIPA bearer request information; according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name Establishing a local connection between the packet data network gateway and the serving gateway of the base station or the access gateway The IP bearer carries the local migration of the IP service of the core network.

The method, device and system for transferring the core network IP service provided by the embodiments of the present invention solve the LIPA transfer problem of the core network IP service, and if the RAN (Radio Acces s Network) is not changed, the core is The IP service of the network is transferred to the home base station to perform the IP service, so as to alleviate the shortage of the core network resources and ensure the priority use of the network resources by the high-priority users. DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

1 is a flowchart of a method for transferring an IP service of a core network according to Embodiment 1 of the present invention; FIG. 2 is a flowchart of another part of a method for transferring an IP service of a core network according to Embodiment 1 of the present invention; FIG. 4 is a flowchart of another part of a method for transferring an IP service of a core network according to Embodiment 2 of the present invention; FIG. 5 is a flowchart of a core network for transferring a core according to Embodiment 3 of the present invention; FIG. 6 is a flowchart of another part of a method for transferring an IP service of a core network according to Embodiment 3 of the present invention; FIG. 7 is a schematic diagram of a method for transferring an IP service of a core network according to Embodiment 4 of the present invention;

8 is a schematic diagram of a method for transferring an IP service of a core network according to Embodiment 5 of the present invention;

FIG. 9 is a schematic structural diagram of a device for transferring an IP service of a core network according to Embodiment 6 of the present invention; FIG. 10 is a schematic structural diagram of a device for transferring an IP service of a core network according to Embodiment 7 of the present invention. detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

In order to make the advantages of the technical solutions of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that the base station in the embodiment of the present invention may be directly connected to the E-E, or may be connected to the E-E through the base station gateway. The base station gateway can connect multiple base stations to the core network at the same time, that is, it has the aggregation function from the base station to the core network, and can also have the data forwarding function and the LIPA capability similar to the base station. For the network architecture of the base station gateway as the local IP egress, the difference from the base station as the local IP egress is: The update and establishment of the L I P A bearer is implemented between the serving gateway node and the packet data network gateway local to the base station gateway. Of course, the base station gateway can also be replaced by other access gateway devices having similar functions (such as: LIPA capability, base station to core network aggregation function, data forwarding function, etc.). When an access gateway such as a base station gateway is deployed, the base station and the MN transmit the message through the access gateway such as the base station gateway. When the access gateway such as the base station gateway is not deployed, the base station and the MME directly send messages.

The base station can be: a home base station. The base station gateway can be: a home base station gateway or other access gateway, The base station gateway and the home base station gateway belong to the access gateway.

The attach request message may be an Attach Request message. The default bearer request message may be: Create Default Bearer Request message or establish a session "i Qing: Create Session Request message. The default bearer response message may be: Create Default Bearer Response message or create a session corresponding message Create Ses s ion The initial context setup request message may be: Initial Context Setup Request message. The attach accept message may be: Attach Accept message. The RRC connection reconfiguration message may be: RRC Connection Reconfiguration message.

The above description is applicable to all of the following embodiments. In the embodiment, the attaching process is taken as an example, and the process is also applicable to the location update, the service request, and the separation process, which will not be repeated here.

The following embodiment is described by taking an EPS (Evolved Packet System) system as an example, and the technical solution is also applicable to the medical TS system.

The following embodiment only considers the case where the base station is used as the LIPA egress, and the same applies to the case where the access gateway such as the base station gateway is used as the LIPA egress. The above description is applicable to the following embodiments.

Embodiment 1

This embodiment describes that the MME sends the handover indication information to the base station, and the base station switches the user to the local base station to perform the local IP connection to the packet data network (PACK), and the embodiment of the present invention provides a transfer core network. The first part of the method of the IP service, as shown in FIG. 1 , includes: Step 101: A UE (User Equipment, User Equipment) initiates an attach request message to the base station; Step 102: The base station according to S-TMSI (S- Temporary Mobile Subscriber Identity)

The temporary mobile subscription subscriber identity is selected and the network indication is selected to obtain the MN. If the MME is not available, the MME is selected by the MN E selection function; then the base station forwards the attach request message to the 匪E in the S1-MME control signaling, where The message carries the indication information that the base station supports the local IP egress capability, for example, by using LB0 Indicate;

Step 103: The MME selects an S-GW (Serving Gateway) and sends a default bearer request message to the S-GW.

Step 104: The S-GW creates an entry in its EPS bearer list, and sends a default bearer request message to the P匪GW (Packet Data Network Gateway). Step 105: PDN GW gives S- The GW returns a setup default bearer response message;

Step 106: The S-GW returns a default bearer response message to the MME.

Step 107: The MN sends an attach accept message to the base station, and the attach accept message includes the following parameters: APN, GUT I, P匪 type, PDN address, session management request, etc.; if the E-detecting base station has LIPA capability, the message carries LIPA indication information, which may be caused by insufficient core network resources, etc. Switching indication information, such as Handover Indication;

Step 108: The base station sends a radio bearer control connection reconfiguration information and carries an attach accept message to the UE.

Step 109: Perform other attach procedures 19 to 24 in the 23.401 protocol; the 23.401 protocol is called General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access, that is, for evolving universal terrestrial wireless General packet radio service enhancement of the access network;

After receiving the LIPA handover indication message, such as Handover Indication (step 107 above), the base station initiates a handover procedure.

If the MN E relocation does not occur before and after the handover, the step 203 between the source E and the target EG described below may be omitted and the source MME and the target MME are the same MME.

If no SGW relocation occurs before and after the handover, the steps between the source SGW and the target SGW described below may be omitted, and the source SGW and the target SGW are the same SGW.

Deciding to trigger a pass SI (S1 is the interface between the evolved base station eNB and the mobility management entity MN). The 酉酉酉 can be: Decision to trigger a relocation via SI; The handover request message can be a Handover Required message; The location request message may be: a Forward Relocation Request message; the update bearer may be: an Update Bearer Request message or a modified bearer request message: a Modify Bearer Request message; the update bearer request message may be: an Update Bearer Request Response message Or modify the bearer response message: Modify Bearer Response message.

The processing of the base station directly connected to the MME and the connection between the eNB and the MME is different. The difference is mainly that the attach request message in step 102 is forwarded to the MN through the gateway, and the gateway supports the local IP export capability. The indication information is indicated by LB0 Indication; in step 107, the detection of the local IP will be the gateway's local IP exit capability.

The subsequent process is shown in Figure 2, as follows:

Step 201: The source base station determines to initiate an S1-based handover to the target base station, where the S1 is an interface between the eNB and the MME.

Step 202: The source base station sends a handover request message to the source E. The handover requirement message may include the following parameters: a source base station to a target base station transparent transmission container; a target base station identifier, SI AP (SI Application) The eNB ID (eNodeB ID, the evolved base station identifier) indicates that the source base station is the target base station;

Step 203: If the relocation E is required, the source E sends a forwarding relocation request message to the target E. The forwarding relocation request message may include the following parameters: MME UE context, source base station to target base station transparent transmission container or eNB ID ;

Step 204: Perform steps 5 to 14 based on the S1 handover procedure in 23.401;

For the step 205, if the subscription data of the UE has the LIPA subscription information of the UE, indicating that the network allows the UE to perform local IP access, the MME performs the LIPA access judgment of the UE according to the LIPA subscription information of the UE, if the network side allows the UE to perform the LI AP. , the lee E selects the local P GW on the source (target) base station according to the widely defined APN (Access Point Name) of the local IP access P匪, ie, the LIPA AP and the eNB ID, That is, L-PGW (Local P匪Gateway, local packet data network gateway); It should be noted here that the identifier L-PGW ID of the base station local PDN GW is the same as the eNB ID. The update bearer request message sent by the MME to the target S-GW, the bearer update request message includes the following parameters: eNB ID, here is the source base station address; for receiving the downlink service on the S1-U, the target base station allocates The TEID (Tunnel End Point Identifier) of the received EPS bearer, etc.; Step 206: The target S-GW sends a bearer update request message to the P匪GW; according to the indication information in step 205, the PDN GW is the source ( Target) L-PGW local to the base station; After receiving the bearer update request message, the L-PGW updates its context and returns an update bearer response message to the S-GW. The update bearer response message includes at least one of the following parameters: PDN GW address, £10 or 3⁄4«15匪, etc.;

Step 207: The SGW sends a bearer update response message to the MN, and the update bearer response message includes the following parameters: a PDN GW address, a TEID, and the like.

Through the above process, the establishment of the local IP bearer of the base station can be completed, and the IP service of the core network of some users can be transferred to the local IP routing exit of the base station to complete the local migration of the IP service. These transferred users may be temporary CSG users in the closed mode of the home base station, non-CSG users in the hybrid access mode, or any users in the open access mode.

The processing in which the base station is directly connected to the MME and connected to the MME through the base station gateway is different. The difference is mainly that, in step 205, the MME selects the local P匪GW on the gateway according to the LIPAAPN and the gateway ID, and the gateway locally The L-PGW ID of the PDN GW is the same as the gateway ID.

On the other hand, when the route of the H(e)NB local IP access to the external P匪 is congested, the IP service of the user accessing the external P匪 through the H(e)NB local IP can also be transferred to the carrier's core network. . The method of the method for transferring the core network IP service provided by the embodiment of the present invention has the advantages of solving the LIPA transfer problem of the core network IP service, and the core network is based on the RAN (Radio Acces s Network). The IP service is transferred to the home base station to perform IP services, so that the core network resources can be alleviated, and the priority use of the network resources by the high priority users can be ensured.

Embodiment 2

This embodiment describes that the network side sends the bearer resource modification indication information to the UE, and the UE establishes the local IP address of the base station to connect to the P through the bearer resource modification procedure. The embodiment of the present invention provides a method for transferring the core network IP service. , as shown in Figure 3, including:

Step 301: The UE initiates an attach request message to the base station.

Step 302: The base station obtains the MME according to the S-TMSI and the selected network indication. If the MME is not available, the MME is selected by using the MME. Then, the base station forwards the attach request message to the MN in the S1-MME control signaling, and simultaneously carries the indication information of the base station supporting the local IP egress capability and the eNB ID in the S1-L E control message, and the indication information is available in the LBO Indi ca t ion

Step 303: The MME selects an S-GW and sends a default bearer request message to the S-GW. Step 304: The S-GW creates an entry in its EPS bearer list, and sends a default bearer request to the PDN GW. Message

Step 305: The PDN GW returns a default bearer response message to the S-GW.

Step 306: The S-GW returns a default bearer response message to the MN.

Step 307: If there is information in the subscription data of the UE that allows the UE to perform local IP, the UE may perform LIPA.

The MN checks the LIPA subscription data of the UE and the local IP egress capability indication information of the base station, and performs L I P A judgment on the UE. If the network allows the UE to perform the L I PA, the MN sends an attach accept message to the base station. The attach accept message includes at least one of the following parameters: APN, GUTI, P匪 type, P匪 address, session management request, and the like. The message carries the LIPA indication information, and the indication information may be bearer resource modification indication information caused by insufficient resources of the core network, such as Bear Resource Modi fy Indication;

Step 308: The base station sends the radio bearer control connection reconfiguration information and carries the attach accept message to the UE, where the message carries the LIPA indication information, and the indication information may be the bearer resource modification indication information caused by the shortage of the core network resources, such as Bear. Resource Modi fy Indi ca ti on;

Step 309, performing 23. Other attachment processes in the 401 protocol 19 ~ 26;

The UE receives the LIPA bearer modification indication message sent by the MME, such as Bear Resource Modi fy. After the indication (the foregoing process 308), the bearer resource modification procedure requested by the UE is triggered.

■ i Qing seeking bearer level resource modification message can be: Request Bearer Resource Modification message.

The process of connecting the base station directly to the MME and connecting to the MME through the base station gateway is different. The difference is mainly that the attach request message in step 302 is forwarded to the MN through the gateway, and the gateway supports the local IP export capability. The indication information (for example, indicated by LB0 Indication) and the gateway ID. Step 307: The detection of the local IP will be the gateway's local IP export capability;

The subsequent process is shown in Figure 4, as follows:

Step 401: The UE sends a request bearer resource modification message to the MN, and the request bearer resource modification message includes at least one of the following parameters: LBI (Linked Bearer Id), PTI (Process Transaction Identifier), The EPS bearer identifier, QoS or TAD (Traffic Aggregate Description), etc., the parameter LBI is used to indicate that the additional bearer resource is connected to the Local PDN, and the parameter TAD is used to indicate that the requested operation is a bearer increase;

Step 402: The MME selects a local L-PGW to the base station according to the eNB ID and the LIPA APN, where the identifier of the local PDN GW of the base station to be described is the same as the eNB ID;

The MME sends a request bearer resource modification message to the S-GW, and the request bearer resource modification message includes at least one of the following parameters: IMSI, LBI, EPS bearer type, QoS or TAD, etc., and the parameter LBI is used to indicate additional bearer resources. Connected to Local P匪, the parameter TAD is used to indicate that the requested operation is a load increase;

Step 403: The S-GW sends a request bearer resource modification message to the P GW; the PDN GW is a local PDN GW to which the additional bearer resource indicated by the LBI is connected, that is, an L-PGW;

Step 404: A dedicated bearer activation process is used to activate the LIPA dedicated bearer.

Through the above process, the establishment of the local IP bearer of the base station can be completed, and the home base station of the IP service of some users can be locally exported; the user can be a temporary CSG user in the closed access mode of the home base station, and the non-mixed access mode CSG users, or any users in open access mode.

The processing in which the base station is directly connected to the MME and connected to the MME through the base station gateway is different. The difference is mainly that in step 402, 匪E selects the local P匪GW on the gateway according to the LIPAAPN and the gateway ID, and the gateway The identifier L-PGW ID of the local PDN GW is the same as the gateway ID.

The method flow of transferring the core network IP service provided by the embodiment of the present invention has the advantages of solving the LIPA transfer problem of the core network IP service, and does not change the RAN (Radio Access Network wireless access). On the basis of the network, the core network IP service is transferred to the home base station to perform the IP service, thereby alleviating the core network resources and ensuring the priority use of the network resources by the high priority users.

Embodiment 3

This embodiment describes that the network side sends the LIPA attaching indication information to the UE, and the UE initiates the LIPA attach process to establish the home base station local IP connection to the P. The embodiment of the present invention provides a method for transferring the core network IP service. As shown in Figure 5, it includes:

Step 501: The UE initiates an attach request message to the base station.

Step 502: The base station obtains the MN according to the S-TMSI and the selected network indication; if the MN E is not obtained, selects the MN by the 匪E selection function, and then the base station forwards the attach request message to the MN in the S1-MME control signaling. And indicating, in the S1-MME control message, indication information that the base station supports the local IP egress capability, where the indication information may be represented by LBO Indication or the like;

Step 503: The MME selects an S-GW and sends a default bearer request message to the S-GW.

Step 504: The S-GW creates an entry in its EPS bearer list, and sends a default bearer clearing message to the PGW.

Step 505: The PDN GW returns a default bearer response message to the S-GW.

Step 506: The S-GW returns a default bearer response message to the MN.

Step 507: If there is information in the subscription data of the UE that allows the UE to perform local IP, the UE may perform LIPA.

The E-checks the LIPA subscription data of the UE, and the local IP egress capability indication information of the base station, and performs LIPA judgment on the UE. If the network allows the UE to perform LIPA, the E-E sends an attach accept message to the base station, and the attach accept message includes at least the following parameters. A: APN, GUTI, P匪 type, P匪 address, or session management request, etc.; the message carries LIPA indication information, and the indication information may be LIPA attachment indication information, such as ΠΡΑ At tach Indication;

Step 508: The base station sends a radio bearer control connection reconfiguration information and carries an attach accept message to the UE, where the message carries LIPA attach indication information, such as LIPA At tach Indication;

Step 509: Execute 23. Other attachment processes in the 401 protocol 19 ~ 26.

The processing of the base station directly connected to the MME and the connection between the eNB and the MME is different. The difference is mainly that the attach request message in step 502 is forwarded to the MN through the gateway, and the gateway supports the local IP export capability. The indication information (as indicated by LBO Indication) and the gateway ID; in step 507, the detection of the local IP will be the gateway's local IP exit capability;

The UE receives the LIPA attach indication message sent by the MME, such as LIPA At tach Indica t ion (on After the process 508), the LI PA attach procedure of the UE is triggered.

The subsequent process is shown in Figure 6, as follows:

Step 601: The UE initiates an attach request message to the base station, where the message carries the LIPA AP, indicating that the UE requests the LIPA service;

Step 602: The base station obtains the MN according to the S-TMSI and the selection network indication, and if the MN E is not obtained, selects the MN by the 匪E selection function; then the base station forwards the attach request message to the MN in the S1-MME control signaling. And carrying the eNB ID of the base station in the S1-MME control message;

Step 603: The MME selects a local L-PGW to the base station according to the eNB ID and the LIPA APN.

The MME selects an S-GW and sends a default bearer request message to the S-GW.

Step 604: The S-GW creates an entry in its EPS bearer list, and sends a default bearer request message to the local L-PGW of the base station.

Step 605: The L-PGW returns a default bearer response message to the S-GW.

Step 606: The S-GW returns a default bearer response message to the MME.

Through the above process, the establishment of the local IP bearer of the base station can be completed, and the home base station of the IP service of some users can be locally exported. The user may be a temporary CSG user in the closed access mode of the home base station, a non-CSG user in the hybrid access mode, or any user in the open access mode.

The processing of the case where the base station is directly connected to the MME and connected to the MME through the base station gateway is different. The difference is mainly that the attach request message in step 602 is forwarded to the MN through the gateway, and carries the gateway ID, in step 603. According to the gateway ID, Li E will select the local P匪GW _C on the gateway.

The method of the method for transferring the core network IP service provided by the embodiment of the present invention has the advantages of solving the LIPA transfer problem of the core network IP service, and the core network is based on the RAN (Radio Acces s Network). The IP service is transferred to the home base station to perform IP services, so that the core network resources can be alleviated, and the priority use of the network resources by the high priority users can be ensured.

Embodiment 4

The application scenario of this embodiment is the same as that of the first embodiment, and details are not described herein again. This embodiment provides a method for transferring IP services of a core network. As shown in FIG. 7, the specific steps are as follows:

Step 701: The MN receives the attach request message initiated by the user equipment and the indication information of the local IP egress capability of the base station or the access gateway forwarded by the base station or the access gateway;

Step 702: The MME determines whether the user equipment is allowed to perform LIPA according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information.

Step 703: If allowed, 匪E sends an attach accept message to the base station or access gateway, where The attach accept message carries the LIPA indication information;

Step 704: Receive a handover request message sent by the base station or the access gateway, where the handover request message carries LIPA bearer request information.

Step 705: The MME establishes a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name to implement the core. Local migration of network IP services.

The step 705 specifically includes:

Sending a bearer update request message to the serving gateway to enable the serving gateway to send the bearer update request message to the packet data network gateway;

And receiving, by the serving gateway, a bearer update response message sent by the packet data network gateway.

For the specific flow of each step described above, refer to Embodiment 1 and FIG. 1 and FIG.

The method for transferring the core network IP service provided by the embodiment of the present invention has the advantages of solving the LIPA transfer problem of the core network IP service, and if the RAN (Radio Acces s Network) is not changed, the core network IP is The service is transferred to the home base station to perform the IP service, so that the core network resources can be alleviated, and the priority use of the network resources by the high priority users can be ensured.

Embodiment 5

The application scenario of this embodiment is the same as that of Embodiment 2 and Embodiment 3, and details are not described herein again. This embodiment provides a method for transferring IP services of a core network, as shown in FIG. 8, and the specific steps are as follows:

Step 801: Receive an attach request message initiated by the user equipment forwarded by the base station or the access gateway, and indication information of the local IP egress capability of the base station or the access gateway;

Step 802: The MME determines whether the user equipment is allowed to perform LIPA according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information.

Step 803: If allowed, 匪 E sends an attach accept message carrying the LIPA indication information to the base station or the access gateway, so that the base station or the access gateway sends the attach accept message to the user equipment;

Step 804: The MN receives the request carrying resource modification message or the attach request message that is sent by the user equipment and carries the LIPA bearer request information.

The request bearer resource modification message includes:

A bearer identification parameter for adding a connection of the LIPA bearer and a service aggregation description parameter for adding a bearer. Step 805: The MME establishes a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name to implement the core. Local migration of network IP services.

The step 805 specifically includes:

For the specific flow of each of the above steps, see Embodiment 2, Embodiment 3, Figure 3, Figure 4, Figure 5 and Figure 6.

The method for transferring the core network IP service provided by the embodiment of the present invention has the advantages of solving the LIPA transfer problem of the core network IP service, and if the RAN (Radio Acces s Network) is not changed, the core network IP is The service is transferred to the home base station to perform IP services, thereby alleviating the core network resources and ensuring the priority use of the network resources by the high priority users.

Embodiment 6

The application scenario of this embodiment is the same as that of the first embodiment and the fourth embodiment, and details are not described herein again. This embodiment provides a device for transferring IP services of a core network, as shown in FIG. 9, and the specific steps are as follows:

The attach request message receiving module 901 is configured to receive an attach request message sent by the user equipment forwarded by the base station or the access gateway, and indication information of a local IP egress capability of the base station or the access gateway;

The determining module 902 is configured to determine, according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA;

The attach accept message sending module 903 is configured to: if the result determined by the determining module 902 is allowed, send an attach accept message to the base station or the access gateway, where the attach accept message carries LIPA indication information;

The handover request message receiving module 904 is configured to receive a handover request message sent by the base station or the access gateway, where the handover request message carries LIPA bearer request information;

Establishing a bearer module 905: configured to establish a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name. To achieve local migration of core network IP services.

Optionally, the establishing the bearer module 905 includes:

a bearer update request message sending module 9051: configured to send a bearer update request message to the service The gateway is configured to enable the service gateway to send the bearer update request message to the packet data network gateway; the bearer update response message receiving module 9052 is configured to receive the bearer sent by the serving data gateway by the packet data network gateway Update the response message.

For the specific flow of each of the above modules, refer to Embodiment 1, Embodiment 4, Figure 1, Figure 2 and Figure 7.

The advantage of the device for transferring the core network IP service provided by the embodiment of the present invention is that the LIPA transfer problem of the core network IP service is solved, and the core network IP is based on the RAN (Radio Acces s Network) without changing the RAN (Radio Acces s Network). The service is forwarded to the home base station to perform IP services, thereby alleviating the core network resources and ensuring the priority use of the network resources by the high priority users.

Example 7

The application scenario of this embodiment is the same as that of the second embodiment, the third embodiment, and the fifth embodiment, and details are not described herein again. The embodiment provides a device for transferring the IP service of the core network. As shown in FIG. 10, the specific steps are as follows: The attach request message receiving module 1001 is configured to receive an attach request message initiated by the user equipment and forwarded by the user equipment. And the indication information of the local IP egress capability of the base station or the access gateway; the determining module 1002: configured to determine, according to the local IP access LIPA subscription information of the user equipment, and the local IP egress capability indication information, whether the user equipment is allowed Perform LIPA;

The attach accept message sending module 1003 is configured to: if the result determined by the determining module 1002 is allowed, send an attach accept message carrying the LIPA indication information to the base station or the access gateway, so that the base station or the access gateway Sending an attach accept message to the user equipment;

a handover request message receiving module 1004: a request bearer resource modification message or an attach request message for carrying the LIPA bearer request information sent by the user equipment;

Establishing a bearer module 1005: configured to establish a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name. To achieve local migration of core network IP services.

Optionally, the establishing the bearer module 1005 includes:

The bearer update request message sending module 10051 is configured to: send a bearer update request message to the serving gateway to enable the service gateway to send the bearer update request message to the packet data network gateway; and bear the update response message receiving module 10052: And a method for receiving a bearer update response message sent by the packet data network gateway forwarded by the serving gateway.

For the specific flow of each of the above modules, see Embodiment 2, Embodiment 3, Embodiment 5, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 8.

The advantage of the device for transferring the IP service of the core network provided by the embodiment of the present invention is that the core network IP is solved. The LIPA transfer problem of the service, if the RAN (Radio Acces s Network) is not changed, the core network IP service is transferred to the home base station to perform IP services, thereby alleviating the core network resources and ensuring high priority. User's prioritized use of network resources. Example eight

The embodiments of the present invention are the same as the application scenarios of the first embodiment, the fourth embodiment, and the sixth embodiment. The embodiments of the present invention provide a system for transferring IP services of a core network, including a base station and/or a base station gateway. And a device for transferring the IP service of the core network, where the device for transferring the core network IP service is used to receive an attach request message initiated by the user equipment forwarded by the base station or the access gateway, and a local IP exit of the base station or the access gateway. Determining information of the capability; determining, according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message to the base station or An access gateway, where the attach accept message carries the LI PA indication information, and receives a handover request message sent by the base station or the access gateway, where the handover request message carries LIPA bearer request information; according to the base station or the access gateway Address, the LIPA bearer request information, and an access point name in the base station or access network The establishment of a local IP network carrying IP core business in order to achieve the migration of local traffic between the gateway and the month of benign packet data network gateway.

For the specific working process of each device of the above system, refer to Embodiment 1, Embodiment 4, Embodiment 6, Figure 1, Figure 2, Figure 2 and Figure 9.

The advantage of the system for transferring the core network IP service provided by the embodiment of the present invention is that the LIPA transfer problem of the core network IP service is solved, and the core network IP is based on the RAN (Radio Acces s Network) without changing the RAN (Radio Acces s Network). The service is transferred to the home base station to perform IP services, thereby alleviating the core network resources and ensuring the priority use of the network resources by the high priority users.

Example nine

The embodiments of the present invention are the same as the application scenarios of the second embodiment, the third embodiment, the fifth embodiment, and the seventh embodiment. The embodiments of the present invention provide a system for transferring the IP service of the core network, including the base station and/or Or a base station gateway, a device for transferring the core network IP service, and a user equipment, where the device for transferring the IP service of the core network is used to receive an attach request message initiated by the user equipment forwarded by the base station or the access gateway, and the base station or the access The indication information of the local IP egress capability of the gateway is determined according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA; if allowed, sending the LIPA indication An attach accept message of the information to the base station or the access gateway, so that the base station or the access gateway sends the attach accept message to the use Receiving, by the user equipment, a request bearer resource modification message or an attach request message that carries the LIPA bearer request information; and according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name, A local IP bearer is established between the packet data network gateway and the serving gateway of the base station or the access gateway to implement local migration of the core network IP service.

For the specific workflow of each device of the above system, see Embodiment 2, Embodiment 3, Embodiment 5, Embodiment 7, Figure 3, Figure 4, Figure 5, Figure 6, Figure 8, and Figure 10.

The advantage of the system for transferring the core network IP service provided by the embodiment of the present invention is that the LIPA transfer problem of the core network IP service is solved, and the core network IP is based on the RAN (Radio Acces s Network) without changing the RAN (Radio Acces s Network). The service is transferred to the home base station to perform the IP service, so that the core network resources can be alleviated, and the priority use of the network resources by the high priority users can be ensured.

The embodiment of the present invention is applicable to an EPS system, but is not limited thereto, and may be applied to other mobile communication systems such as a medical system (Universal Mobile Phone System).

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Rights request

A method for transferring IP services of a core network, characterized in that:

Receiving, by the base station or the access gateway, an attach request message initiated by the user equipment, and indication information of a local IP egress capability of the base station or the access gateway;

Determining, according to the local IP access LIPA subscription information of the user equipment and the local IP egress capability indication information, whether the user equipment is allowed to perform LIPA;

If yes, sending an attach accept message to the base station or the access gateway, where the attach accept message carries LIPA indication information;

Receiving a handover request message sent by the base station or the access gateway, where the handover request message carries LIPA bearer request information;

Establishing a local IP bearer between the packet data network gateway of the base station or the access gateway and the serving gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name to implement the core network IP service. Local migration.

The method according to claim 1, wherein the packet is based on an address of the base station or an access gateway, the LIPA bearer request information, and an access point name in a packet data network of the base station or an access gateway. Local IP is set up between the gateway and the monthly gateway to implement local migration of core network IP services, including:

3. A method for transferring IP services of a core network, characterized in that:

If yes, sending an attach accept message carrying the LIPA indication information to the base station or the access gateway, so that the base station or the access gateway sends the attach accept message to the user equipment;

Receiving a request bearer resource modification message or an attach request message that is sent by the user equipment and carrying the LIPA bearer request information;

Establishing a local IP bearer between the packet data network gateway of the base station or the access gateway and the serving gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name to implement the core Local migration of heart network IP services.

The method according to claim 3, wherein the requesting the bearer resource modification message comprises:

The bearer identification parameter of the connection used to add the LIPA bearer and the service aggregation description parameter used to increase the bearer.

The method according to claim 3, wherein the packet data network according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name in the base station or the access gateway Local IP is set up between the gateway and the monthly gateway to implement local migration of core network IP services, including:

A device for transferring an IP service of a core network, the device comprising: an attach request message receiving module, configured to: receive an attach request message initiated by a user equipment forwarded by a base station or an access gateway, and connect the base station or the base station Indication information of the local IP egress capability of the gateway;

Establishing a bearer module: configured to establish a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway according to the address of the base station or the access gateway, the LIPA bearer request information, and the access point name. Realize local migration of core network IP services.

The device according to claim 6, wherein the establishing the bearer module comprises: a bearer update request message sending module: configured to send a bearer update request message to the serving gateway, so that the serving gateway Sending a bearer update request message to the packet data network gateway;

The bearer update response message receiving module is configured to receive a bearer update response message sent by the packet data network gateway forwarded by the serving gateway.

A device for transferring an IP service of a core network, the device comprising: An attach request message receiving module: configured to receive an attach request message initiated by the user equipment and forwarded by the base station or the access gateway, and indication information of a local IP egress capability of the base station or the access gateway;

An attach accept message sending module: configured to send an attach accept message carrying the LIPA indication information to the base station or the access gateway, if the result determined by the determining module is allowed, so that the base station or the access gateway An attach accept message is sent to the user equipment;

a handover request message receiving module: a request bearer resource modification message or an attach request message for carrying the LIPA bearer request information sent by the user equipment;

The device according to claim 8, wherein the establishing the bearer module comprises: a bearer update request message sending module: configured to send a bearer update request message to the serving gateway, so that the service gateway will Sending a bearer update request message to the packet data network gateway;

A system for transferring a core network IP service, comprising a base station and/or a base station gateway, a device for transferring an IP service of a core network, and a user equipment, wherein the device for transferring the core network IP service is used for receiving a base station or a connection An attach request message initiated by the user equipment forwarded by the gateway, and indication information of the local IP egress capability of the base station or the access gateway; accessing the LIPA subscription information and the local IP egress capability indication information according to the local IP address of the user equipment Determining whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message to the base station or the access gateway, where the attach accept message carries LIPA indication information; receiving a handover request sent by the base station or the access gateway Message, the handover request message carries LIPA bearer request information; a packet data network gateway and service at the base station or access gateway according to the address of the base station or access gateway, the LIPA bearer request information, and an access point name A local IP is established between the gateways to implement local migration of core network IP services.

A system for transferring IP services of a core network, comprising: a base station and/or a base station gateway, a device for transferring an IP service of a core network, and a user equipment, wherein the device for transferring the core network IP service is used for receiving a base station or a connection An attach request message initiated by the user equipment forwarded by the gateway, and indication information of the local IP egress capability of the base station or the access gateway; accessing the LIPA according to the local IP address of the user equipment The subscription information and the local IP egress capability indication information determine whether the user equipment is allowed to perform LIPA; if allowed, sending an attach accept message carrying the LIPA indication information to the base station or the access gateway, so that the base station or the base station is connected The ingress gateway sends the attach accept message to the user equipment; receiving a request bearer resource modification message or an attach request message that is sent by the user equipment and carrying the LIPA bearer request information; according to the address or the address of the base station or the access gateway The LIPA bearer request information and the access point name establish a local IP bearer between the packet data network gateway and the serving gateway of the base station or the access gateway to implement local migration of the core network IP service.