CN105657829A - Paging method, paging system, core network equipment and dual-connection gateway - Google Patents
Paging method, paging system, core network equipment and dual-connection gateway Download PDFInfo
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Abstract
The invention discloses a paging method. The paging method is applied to a core network side and comprises the following steps of obtaining related information of a dual-connection gateway (DC GW); and sending a paging message according to the related information of the DC GW. The invention further discloses core network equipment, the DC GW and a paging system simultaneously.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a paging method, system, core network device, and Dual Connectivity Gateway (DCGW).
Background
Fig. 1 is a schematic diagram of a general architecture of a Long Term Evolution (LTE) system in the prior art. As shown in fig. 1, the LTE system includes: a Mobility Management Entity (MME), a Serving Gateway (SGW), a User Equipment (UE) and a base station (eNB, eNodeB). The eNB and the UE are UU interfaces, the eNB and the MME are S1-MME interfaces, the eNB and the SGW are S1-U interfaces, and the eNB is X2-U and X2-C interfaces; here, the S1-MME interface is the S1 interface of the control plane; the X2-U interface is the X2 interface for the user plane, and the X2-C interface is the X2 interface for the control plane.
In the LTE system, the protocol stack of the S1-MME interface is divided into the following protocol layers from bottom to top: l1 protocol, L2 protocol, Internet Protocol (IP), Stream Control Transmission Protocol (SCTP), and S1 application protocol (S1-AP, S1-application protocol). In an LTE system, a protocol stack of an S1-U interface is divided into the following protocol layers from bottom to top: l1 protocol, L2 protocol, user data protocol/internet protocol (UDP/IP), GPRS tunneling protocol-user plane (GTP-U).
At present, due to the shortage of frequency spectrum resources and the rapid increase of large-flow services of mobile users, in order to increase user throughput and enhance mobile performance, the requirement of hot spot coverage by adopting high frequency points such as 3.5GHz is increasingly obvious, and nodes with low power become a new application scene. However, because the signal attenuation of the high frequency point is comparatively severe, and the coverage area of the low-power new cell is comparatively small, and does not share the same site with the existing cell, if the user moves between the new cells or between the new cell and the existing cell, frequent handover procedures are necessarily caused, so that the user information is frequently transmitted between the base stations, thereby causing great signaling impact to the core network, and further inhibiting the introduction of a large number of small cell base stations at the wireless side. Therefore, a dual connection solution is proposed.
Fig. 2 is a schematic diagram of a general architecture of a small cell base station system. As shown in fig. 2, the small cell base station system includes: MME, SGW, UE and eNB. The UE and the eNB are UU interfaces, the MeNB and the MME are S1-MME interfaces, the MeNB, the SeNB and the SGW are S1-U interfaces, and the eNB is an Xn interface. In the small cell base station system, user data may be delivered from the core network to the user through a master eNB (MeNB, MastereNB), or may be delivered from the core network to the user through a slave eNB (SeNB, second eNB). After the user accesses the MeNB, the dual connectivity can be realized by adding, modifying or deleting the SeNB.
Meanwhile, in order to reduce the impact of handover signaling on the core network under the scenario that the MeNB is not changed and the SeNB is changed under the dual connectivity architecture, a DCGW may be introduced, and the node may be a newly added network node, may also be located in the MeNB, and may also be located in an existing home base station gateway (HeNBGW). In a dual connectivity implementation scenario of home base station (HeNB) deployment, the HeNB may also serve as an MeNB/SeNB, and thus there is a scenario of HeNBGW deployment.
In the small base station system shown in fig. 2, because the concepts of MeNB and SeNB and the concept of DCGW are introduced, how to implement paging optimization by the core network is a problem to be solved urgently.
Disclosure of Invention
In order to solve the existing technical problem, embodiments of the present invention provide a paging method, a system core network device, and a DCGW.
The embodiment of the invention provides a paging method, which is applied to a core network side and comprises the following steps:
acquiring relevant information of DCGW;
and sending down the paging message according to the relevant information of the DCGW.
In the foregoing solution, the acquiring of the relevant information of the DCGW includes:
and acquiring the relevant information of the DCGW through an S1 interface.
In the above solution, when the paging message is issued according to the relevant information of the DCGW, the method further includes:
and sending down the paging message according to a Tracking Area Identity (TAI) list and the relevant information of the DCGW.
In the above solution, the issuing a paging message according to the tracking area identity TAI list and the relevant information of the DCGW includes:
sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
The embodiment of the invention also provides a paging method, which is applied to the DCGW side and comprises the following steps:
receiving a paging message;
and sending the paging message to the base station subordinate to the paging message.
In the foregoing solution, before the sending the paging message to the base station subordinate to the method, the method further includes:
acquiring information of the subordinate base station;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
In the above solution, when the paging message is a page for a local IP access (LIPA) or a local network selected IP traffic offload (SIPTOLN), the sending the paging message to a base station under its own control is:
and sending the paging message to a base station where the LIPA or SIPTOLN service combined local gateway L-GW is located according to the address information of the combined L-GW of the LIPA or SIPTOLN service.
The embodiment of the invention also provides a paging method, which comprises the following steps:
the core network acquires the relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW;
and after receiving the paging message, the DCGW transmits the paging message to a base station subordinate to the DCGW.
In the foregoing solution, the acquiring of the relevant information of the DCGW includes:
and the core network acquires the relevant information of the DCGW through an S1 interface.
In the above solution, when the paging message is issued according to the relevant information of the DCGW, the method further includes:
and the core network transmits the paging message according to the TAI list and the relevant information of the DCGW.
In the above solution, the issuing a paging message according to the tracking area identity TAI list and the relevant information of the DCGW includes:
the core network sends the paging message to DCGW connected with the base station where the UE in the TAI list is located; or, the core network sends the paging message to the DCGW connected to the base station where the UE in the TAI list is located and to other base stations where the UE in the TAI list is located.
In the foregoing solution, before the sending the paging message to the base station subordinate to the method, the method further includes: acquiring information of the subordinate base station;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
In the above solution, when the paging message is a paging for a LIPA or sip toln service, the issuing the paging message to a subordinate base station thereof is:
and sending the paging message to a base station where the LIPA or SIPTOLN service combined L-GW is located according to the address information of the combined L-GW of the LIPA or SIPTOLN service.
An embodiment of the present invention further provides a core network device, including: an acquisition unit and a distribution unit; wherein,
the acquiring unit is used for acquiring relevant information of DCGW;
and the issuing unit is used for issuing the paging message according to the relevant information of the DCGW.
In the above solution, the issuing unit is configured to issue the paging message according to the TAI list and the relevant information of the DCGW.
In the foregoing solution, the issuing unit is specifically configured to: sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
An embodiment of the present invention further provides a DCGW, including: a receiving unit and a transmitting unit; wherein,
the receiving unit is used for receiving a paging message;
and the sending unit is used for sending the paging message to a base station under the DCGW where the sending unit is located.
In the foregoing solution, the DCGW further includes: the information acquisition unit is used for acquiring the information of the base station under the DCGW where the information acquisition unit is located;
correspondingly, the sending unit sends the paging message to the base station under the DCGW according to the information of the base station under the DCGW.
In the foregoing solution, the sending unit is configured to, when the paging message is a paging for a LIPA or SIPTOLN service, send the paging message to a base station where the LIPA or SIPTOLN service jointly establishes an L-GW according to address information of the L-GW for the LIPA or SIPTOLN service.
The embodiment of the invention also provides a paging system, which comprises: core network equipment and DCGW; wherein,
the core network equipment is used for acquiring relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW;
and the DCGW is used for sending the paging message to a base station subordinate to the DCGW after receiving the paging message.
In the above scheme, the core network device is configured to issue the paging message according to the TAI list and the relevant information of the DCGW.
In the foregoing scheme, the core network device is specifically configured to: sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
In the above scheme, the DCGW is further configured to obtain information of a base station subordinate to the DCGW; and sending the paging message to the base station subordinate to the paging message according to the information of the base station subordinate to the paging message.
In the above solution, the DCGW is configured to, when the paging message is a paging for the LIPA or SIPTOLN service, issue the paging message to a base station where the LIPA or SIPTOLN service jointly establishes the L-GW, according to address information of the LIPA or SIPTOLN service jointly establishes the L-GW.
According to the paging method, the paging system, the core network device and the DCGW, the core network acquires relevant information of the DCGW; sending down a paging message according to the relevant information of the DCGW; after receiving the paging message, the DCGW transmits the paging message to the base station subordinate to the DCGW, so that the UE paging can be optimized, and the network performance can be improved.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.
Fig. 1 is a schematic diagram of an LTE system architecture;
FIG. 2 is a diagram of a small cell base station system architecture;
FIG. 3 is a flowchart illustrating a paging method according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a second paging method according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a third paging method according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a fourth paging method according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a fifth paging method according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a six-core network device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a six DCGW in accordance with an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a six-paging system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In order to implement the LIPA/SIPTOLN function in the existing LTE system, in a scenario of combining a local gateway (L-GW), a base station (which may be a macro base station or an HeNB) where the L-GW is located needs to report an IP address of the local L-GW to a core network through a UE dedicated message, because: the packet data gateway (PDNGW) in the LIPA/SIPTO service is selected by using the IP address of the L-GW provided by the base station where the L-GW is located, instead of querying through a Domain Name System (DNS). Therefore, the base station where the combined L-GW is located needs to carry the IP address of the combined L-GW with the LIPA/SIPTO service in the INITIALLUEMESSAGE and UPLINKNASTRANSPORT messages; the core network can realize paging optimization according to the IP address information of the L-GW, so that the paging message is only sent to and set up the base station where the L-GW is located.
In a dual-connection network architecture, the concepts of MeNB, SeNB and DCGW are introduced, so how to implement paging optimization by a core network is a problem to be solved.
The scheme of the embodiment of the invention can be applied to the application scene of the double-connection network architecture.
Example one
The embodiment provides a paging method, applied to a core network side, including:
acquiring relevant information of DCGW;
and sending down the paging message according to the relevant information of the DCGW.
Wherein, the acquiring of the relevant information of the DCGW is:
and acquiring the relevant information of the DCGW through an S1 interface.
Here, the core network refers to a core network device, such as an MME or the like.
The message carrying the DCGW-related information may be a common S1 interface message, or a UE-specific S1 interface message; the common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message. In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
When the paging message is issued according to the relevant information of the DCGW, the method may further include: sending down a paging message according to a TAI list and the relevant information of the DCGW;
specifically, the paging message is sent to the DCGW connected to the base station where the UE is located within the TAI list; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
The information related to the DCGW may include DCGW identification information and the like.
The embodiment of the invention provides another paging method, which is applied to a DCGW side and comprises the following steps:
receiving a paging message;
and sending the paging message to the base station subordinate to the paging message.
In practical applications, the subordinate base station may be an SeNB.
Before the sending the paging message to the base station subordinate to itself, the method may further include: acquiring information of the subordinate base station;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
The information of the subordinate base station may be base station related configuration information such as a base station ID.
When the paging message is a page for LIPA/sip toln service, the issuing the paging message to a base station subordinate to the paging message is as follows:
and sending the paging message to a base station where the LIPA/SIPTOLN service combined L-GW is located according to the address information of the combined L-GW of the LIPA/SIPTOLN service.
Here, in practical application, the base station where the LIPA/SIPTOLN service convergence L-GW is located may be an SeNB. The sum L-GW means that: a GateWay (GW) is co-located with a base station.
In this embodiment, as shown in fig. 3, another paging method includes the following steps:
step 301: the core network acquires the relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW;
here, the core network refers to a core network device, such as an MME or the like.
The acquiring of the relevant information of the DCGW includes:
and the core network acquires the relevant information of the DCGW through an S1 interface.
The message carrying the DCGW-related information may be a common S1 interface message, or a UE-specific S1 interface message; the common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message. In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
When the paging message is issued according to the relevant information of the DCGW, the method may further include: the core network sends down the paging message according to the TAI list and the relevant information of the DCGW;
specifically, the core network sends a paging message to a DCGW connected to a base station where the UE is located within a TAI list; or, the core network sends the paging message to the DCGW connected to the base station where the UE in the TAI list is located and to other base stations where the UE in the TAI list is located.
The information related to the DCGW may include DCGW identification information and the like.
Step 302: and after receiving the paging message, the DCGW transmits the paging message to a base station subordinate to the DCGW.
Here, in practical applications, the base station under its own control may be an SeNB.
Before performing this step, the method may further include: the DCGW acquires information of a base station subordinate to the DCGW;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
The information of the subordinate base station may be base station related configuration information such as a base station ID.
When the paging message is a page for LIPA/sip toln service, the issuing the paging message to a base station subordinate to the paging message is as follows:
and the DCGW sends the paging message to a base station where the LIPA/SIPTOLN service co-located L-GW is located according to the address information of the co-located L-GW of the LIPA/SIPTOLN service.
Here, in practical application, the base station where the LIPA/SIPTOLN service convergence L-GW is located may be an SeNB. The sum L-GW means that: the GW is integrated with the base station.
In the paging method provided by the embodiment of the invention, a core network acquires relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW; after receiving the paging message, the DCGW transmits the paging message to the base station subordinate to the DCGW, so that the UE paging can be optimized, and the network performance can be improved.
In addition, when the paging message is the paging of the LIPA/SIPTOLN service, the DCGW sends the paging message to the SeNB where the L-GW is located according to the address information of the L-GW jointly set for the LIPA/SIPTOLN service, so that the paging range can be further optimized, and the network performance is further improved.
Example two
The application scenario of this embodiment is as follows: DCGW is deployed under the environment of small base station; and DCGW is independent network element, and there is S1 interface between DCGW and MME.
The paging method of this embodiment, as shown in fig. 4, includes the following steps:
step 401: the SeNB initiates an S1 interface establishment request to the DCGW;
here, the S1 interface establishment request carries information of the SeNB; the information of the SeNB may include SeNB-related configuration information such as SeNBID.
Step 402: DCGW sends S1 interface setup response to SeNB, and then executes step 403;
here, steps 401 to 402 are procedures for establishing an interface between the SeNB and the DCGW, and may be implemented by reusing the existing S1 interface establishment procedure.
The interface establishment response of S1 includes DCGW related information; the DCGW-related information may include DCGW identification information, such as DCGW IDentity (ID, IDentity).
Step 403: the DCGW saves information of the SeNB to which it is connected, and then executes step 404;
here, the information of the connected SeNB may be SeNB-related configuration information such as SeNBID.
Step 404: the MME acquires DCGW related information through an S1 interface between the MME and the DCGW;
here, the message carrying DCGW-related information transferred by the S1 interface may be a common S1 interface message or a UE-specific S1 interface message.
The common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message.
In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
Step 405: the MME saves the DCGW related information to which the MME itself is connected, and then performs step 406;
step 406: when MME initiates UE paging message, MME sends down paging message to DCGW;
here, the MME may issue the paging message according to the saved DCGW-related information, in addition to the TAI list; in other words, the MME sends the paging message to the DCGW to which the base station where the UE within the TAI list is connected, or the MME sends the paging message to the DCGW to which the base station where the UE within the TAI list is connected and to other base stations where the UE within the TAI list is connected.
The paging message includes information related to the DCGW.
Step 407: and the DCGW sends the paging message to the SeNB connected with the DCGW.
Here, when the method of the present embodiment is directed to the paging case of the LIPA/SIPTOLN service, the DCGW may further optimize the paging range, thereby having a significant advantageous effect. For example, when the combined L-GW for the LIPA/SIPTOLN service of the UE is located in the SeNB, the MME may page the UE in the DCGW range by the method of this embodiment, and the DCGW may further optimize the paging range according to the address information of the combined L-GW for the LIPA/SIPTOLN service, that is: and sending down the paging message only aiming at the SeNB where the LIPA/SIPTOLN service joint L-GW is positioned.
EXAMPLE III
The application scenario of this embodiment is as follows: the application scenario of this embodiment is as follows: DCGW is deployed under the environment of small base station; and UE-related S1 interface control plane signaling can only exist between the MeNB and the MME.
The paging method of this embodiment, as shown in fig. 5, includes the following steps:
step 501: the SeNB initiates an S1 interface establishment request to the DCGW;
here, the S1 interface establishment request carries information of an SeNB; the information of the SeNB may include SeNB-related configuration information such as SeNBID.
Step 502: DCGW sends S1 interface setup response to SeNB, and then executes step 503;
here, steps 501 to 502 are procedures for establishing an interface between the SeNB and the DCGW, and can be implemented by reusing the existing S1 interface establishment procedure.
The interface establishment response of S1 includes DCGW related information; the DCGW-related information may include DCGW identification information, such as DCGWID, among others.
After step 502 is completed, the DCGW may save the information of the SeNB connected to itself; the information of the connected SeNB may be SeNB-related configuration information such as SeNBID.
Step 503: after receiving the S1 interface establishment response, the SeNB sends DCGW related information to the MeNB;
here, the flow may be established using the existing X2 interface, or the SeNB may be caused to transmit DCGW-related information to the MeNB using a dual connectivity SeNB add flow message.
Step 504: the MeNB stores mapping information of the SeNB and the DCGW according to the received DCGW related information, and then executes step 505;
step 505: the MME acquires DCGW related information through an S1 interface between the MME and the MeNB;
here, the message carrying DCGW-related information transferred by the S1 interface may be a common S1 interface message or a UE-specific S1 interface message.
The common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message.
In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
Step 506: MME stores the relevant information of DCGW connected with MME, and then executes step 507;
step 507: when the MME initiates a UE paging message, the MME issues the paging message to the MeNB;
here, the MME may issue a paging message according to the saved DCGW-related information, in addition to the TAI list; such as: and sending the paging message to the MeNB according to the DCGW related information.
The paging message sent to the MeNB contains DCGW-related information.
Step 508: after receiving the paging message, the MeNB forwards the paging message to the corresponding DCGW;
step 509: and the DCGW sends the paging message to the SeNB connected with the DCGW.
Here, when the method of the present embodiment is directed to the paging case of the LIPA/SIPTOLN service, the DCGW may further optimize the paging range, thereby having a significant advantageous effect. For example, when the combined L-GW for the LIPA/SIPTOLN service of the UE is located in the SeNB, the MME may page the UE in the DCGW range by the method of this embodiment, and the DCGW may further optimize the paging range according to the address information of the combined L-GW for the LIPA/SIPTOLN service, that is: and sending down the paging message only aiming at the SeNB where the LIPA/SIPTOLN service joint L-GW is positioned.
Example four
The application scenario of this embodiment is as follows: the application scenario of this embodiment is as follows: DCGW is deployed under the environment of small base station; the DCGW is located in the MeNB, and logical functional entities of 1 or more DCGWs may be integrated on the MeNB.
The paging method of this embodiment, as shown in fig. 6, includes the following steps:
step 601: the SeNB initiates an interface establishment request to the MeNB;
here, the interface establishment request carries information of an SeNB; the information of the SeNB may include SeNB-related configuration information such as SeNBID.
Step 602: the MeNB sends an interface establishment response to the SeNB, and then executes step 603;
here, steps 601 to 602 are procedures of establishing an interface between the SeNB and the MeNB, and may be implemented by reusing the existing S1 interface establishment procedure or X2 interface establishment procedure.
The interface establishment response contains DCGW related information; the DCGW-related information may include DCGW identification information, such as DCGWID, among others.
Step 603: the MeNB saves mapping information of the SeNB and the DCGW, and then executes step 604;
here, the mapping information includes: information of SeNB and DCGW related information;
specifically, the DCGW located in the MeNB saves information of the SeNB to which it is connected, thereby forming mapping information;
the information of the SeNB may include SeNB related configuration information such as SeNBID; the DCGW-related information in the mapping information may include DCGW identification information, such as DCGWID.
Step 604: the MME acquires DCGW related information through an S1 interface between the MME and the MeNB;
here, the message carrying DCGW-related information transferred by the S1 interface may be a common S1 interface message or a UE-specific S1 interface message.
The common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message.
In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
Step 605: the MME saves the DCGW related information connected to itself and the MeNB information where the DCGW is located, and then performs step 606;
here, the MeNB information may be MeNBID or the like.
Step 606: when the MME initiates a UE paging message, the MME issues the paging message to the MeNB;
here, the MME may issue a paging message according to the saved DCGW-related information, in addition to the TAI list; such as: and sending the paging message to the MeNB according to the DCGW related information.
The paging message sent to the MeNB contains DCGW-related information.
Step 607: and after receiving the paging message, the MeNB sends the paging message to the SeNB connected with the corresponding DCGW.
Here, when the method of the present embodiment is directed to the paging case of the LIPA/SIPTOLN service, the DCGW may further optimize the paging range, thereby having a significant advantageous effect. For example, when the combined L-GW for the LIPA/SIPTOLN service of the UE is located in the SeNB, the MME may page the UE in the DCGW range by the method of this embodiment, and the DCGW may further optimize the paging range according to the address information of the combined L-GW for the LIPA/SIPTOLN service, that is: and sending down the paging message only aiming at the SeNB where the LIPA/SIPTOLN service joint L-GW is positioned.
EXAMPLE five
The application scenario of this embodiment is as follows: the application scenario of this embodiment is as follows: DCGW is deployed under the environment of small base station; the DCGW is located in the HeNBGW, and logic function entities of 1 or more DCGWs can be integrated on the HeNBGW.
The paging method of this embodiment, as shown in fig. 7, includes the following steps:
step 701: the SeNB initiates an S1 interface establishment request to the HeNB;
here, the interface establishment request carries information of an SeNB; the information of the SeNB may include SeNB-related configuration information such as SeNBID.
Step 702: the HeNBGW sends an S1 interface establishment response to the SeNB, and then executes step 703;
here, steps 701 to 702 are procedures of establishing an interface between the SeNB and the HeNBGW, and may be implemented by reusing the existing S1 interface establishment procedure.
The interface establishment response of S1 includes DCGW related information; the DCGW-related information may include DCGW identification information, such as DCGWID, among others.
Step 703: the HeNB BGW stores mapping information of the SeNB and the DCGW, and then executes step 704;
here, the mapping information includes: information of SeNB and DCGW related information;
specifically, the DCGW located in the HeNBGW stores information of an SeNB connected to itself, thereby forming mapping information;
the information of the SeNB may include SeNB related configuration information such as SeNBID; the DCGW-related information in the mapping information may include DCGW identification information, such as DCGWID.
Step 704: the MME acquires DCGW related information through an S1 interface between the MME and the HeNB WW;
here, the message carrying DCGW-related information transferred by the S1 interface may be a common S1 interface message or a UE-specific S1 interface message.
The common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message.
In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
Step 705: the MME stores the relevant information of the DCGW connected with the MME and the information of the MeNB where the DCGW is located, and then step 706 is executed;
here, the MeNB information may be MeNBID or the like.
Step 706: when the MME initiates a UE paging message, the MME issues the paging message to the HeNB BGW;
here, the MME may issue a paging message according to the saved DCGW-related information, in addition to the TAI list; such as: and sending the paging message to HeNBGW according to the DCGW related information.
The paging message sent to the HeNBGW includes DCGW-related information.
Step 707: and after receiving the paging message, the HeNB BGW sends the paging message to the SeNB connected with the corresponding DCGW.
Specifically, the HeNBGW sends the paging message to the SeNB connected to the corresponding DCGW according to the stored mapping information between the SeNB and the DCGW.
Here, when the method of the present embodiment is directed to the paging case of LIPA/sipto ln service, henbgw (dcgw) may further optimize the paging range, thereby having a significant beneficial effect. For example, when the combined L-GW for the LIPA/SIPTOLN service of the UE is located in the SeNB, the MME may page the UE in the DCGW range by the method of this embodiment, and the DCGW may further optimize the paging range according to the address information of the combined L-GW for the LIPA/SIPTOLN service, that is: and sending down the paging message only aiming at the SeNB where the LIPA/SIPTOLN service joint L-GW is positioned.
EXAMPLE six
This embodiment provides a core network device, as shown in fig. 8, the device includes: an acquisition unit 81 and a distribution unit 82; wherein,
the acquiring unit 81 is configured to acquire relevant information of the DCGW;
the issuing unit 82 is configured to issue the paging message according to the relevant information of the DCGW.
The obtaining unit 81 is specifically configured to obtain the relevant information of the DCGW through an S1 interface.
The core network device may be an MME or the like.
The message carrying the DCGW-related information may be a common S1 interface message, or a UE-specific S1 interface message; the common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message. In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
The issuing unit 82 is configured to issue the paging message according to the TAI list and the relevant information of the DCGW;
specifically, the issuing unit 82 sends the paging message to the DCGW connected to the base station where the UE is located within the TAI list; or, the issuing unit 82 sends the paging message to the DCGW connected to the base station where the UE in the TAI list is located and to other base stations where the UE in the TAI list is located.
The information related to the DCGW may include DCGW identification information and the like.
In practical application, the obtaining unit 81 may be implemented by a receiver in a core network device; the issuing unit 82 may be implemented by a Central Processing Unit (CPU), a Microprocessor (MCU), a Digital Signal Processor (DSP), or a programmable logic array (FPGA) in the core network device in combination with the transmitter.
This embodiment further provides a DCGW, as shown in fig. 9, where the DCGW includes: a receiving unit 91 and a transmitting unit 92; wherein,
the receiving unit 91 is configured to receive a paging message;
the sending unit 92 is configured to send the paging message to a base station under the DCGW where the sending unit is located.
In practical applications, the subordinate base station may be an SeNB.
The DCGW may further include: the information acquisition unit is used for acquiring the information of the base station under the DCGW where the information acquisition unit is located;
correspondingly, the sending unit 92 sends the paging message to the base station under the DCGW where the sending unit is located according to the information of the base station under the DCGW.
The information of the subordinate base station may be base station related configuration information such as a base station ID.
The sending unit 92 is configured to, when the paging message is a page for the LIPA/SIPTOLN service, send the paging message to a base station where the LIPA/SIPTOLN service co-located L-GW is located according to address information of the co-located L-GW of the LIPA/SIPTOLN service.
Here, in practical application, the base station where the LIPA/SIPTOLN service convergence L-GW is located may be an SeNB. The sum L-GW means that: the GW is integrated with the base station.
In practical applications, the receiving unit 91 and the information acquiring unit may be implemented by a receiver in the DCGW; the sending unit 92 may be implemented by a CPU, MCU, DSP or FPGA in the DCGW in combination with a transmitter.
The present embodiment further provides a paging system, as shown in fig. 10, the system includes: core network device 101 and DCGW 102; wherein,
the core network device 101 is configured to obtain relevant information of the DCGW 102; and according to the relevant information of the DCGW102, sending down the paging message;
the DCGW102 is configured to, after receiving the paging message, send the paging message to a base station subordinate to the DCGW.
The core network device 101 may be an MME or the like.
The acquiring of the relevant information of the DCGW includes:
the core network device 102 obtains the relevant information of the DCGW through an S1 interface.
The message carrying the DCGW-related information may be a common S1 interface message, or a UE-specific S1 interface message; the common S1 interface message may be one or more of the following: s1 establishing request message and base station configuration update message; the UE-specific S1 interface message may employ one or more of the following: INITIALUEMESSAGE message, uplinkasransport message. In practical applications, the messages transferred by the S1 interface are not limited to the above listed S1 interface messages.
The core network device 101 is configured to issue a paging message according to a TAI list and the relevant information of the DCGW;
specifically, the core network device 101 sends a paging message to a DCGW connected to a base station where the UE is located within a TAI list; or, the core network device 101 sends the paging message to the DCGW connected to the base station where the UE in the TAI list is located and to other base stations where the UE in the TAI list is located.
The information related to the DCGW may include DCGW identification information and the like.
In practical application, the base station under its own control may be an SeNB.
The DCGW102 is further configured to obtain information of a base station subordinate to the DCGW; correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
The information of the subordinate base station may be base station related configuration information such as a base station ID.
And the DCGW102 is configured to, when the paging message is a page for the LIPA/SIPTOLN service, issue the paging message to a base station where the LIPA/SIPTOLN service co-located L-GW is located according to address information of the co-located L-GW of the LIPA/SIPTOLN service.
Here, in practical application, the base station where the LIPA/SIPTOLN service convergence L-GW is located may be an SeNB. The sum L-GW means that: the GW is integrated with the base station.
In the paging system provided in the embodiment of the present invention, the core network device 101 obtains relevant information of the DCGW 102; and according to the relevant information of the DCGW102, sending down the paging message; after receiving the paging message, the DCGW102 issues the paging message to the base station subordinate to itself, so that UE paging optimization can be achieved, thereby facilitating improvement of network performance.
In addition, when the paging message is a paging of the LIPA/SIPTOLN service, the DCGW102 issues the paging message to the SeNB where the L-GW is located according to the address information of the L-GW jointly set for the LIPA/SIPTOLN service, so that the paging range can be further optimized, thereby further improving the network performance.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (24)
1. A paging method is applied to a core network side, and comprises the following steps:
acquiring related information of a double-connection gateway DCGW;
and sending down the paging message according to the relevant information of the DCGW.
2. The method of claim 1, wherein the obtaining information about the DCGW is:
and acquiring the relevant information of the DCGW through an S1 interface.
3. The method of claim 1, wherein when the paging message is issued according to the information related to the DCGW, the method further comprises:
and sending down the paging message according to a tracking area identification TAI list and the relevant information of the DCGW.
4. The method of claim 3, wherein the sending down the paging message according to the Tracking Area Identity (TAI) list and the information related to the DCGW comprises:
sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
5. A paging method is applied to a DCGW side, and comprises the following steps:
receiving a paging message;
and sending the paging message to the base station subordinate to the paging message.
6. The method of claim 5, wherein before sending the paging message to the base station under its own control, the method further comprises:
acquiring information of the subordinate base station;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
7. The method of claim 5, wherein when the paging message is a page for local IP access (LIPA) or local network selected IP traffic offload (SIPTOL) service, the issuing the paging message to a subordinate base station comprises:
and sending the paging message to a base station where the LIPA or SIPTOLN service combined local gateway L-GW is located according to the address information of the combined L-GW of the LIPA or SIPTOLN service.
8. A method of paging, the method comprising:
the core network acquires the relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW;
and after receiving the paging message, the DCGW transmits the paging message to a base station subordinate to the DCGW.
9. The method of claim 8, wherein the obtaining information about the DCGW is:
and the core network acquires the relevant information of the DCGW through an S1 interface.
10. The method of claim 8, wherein when the paging message is issued according to the information related to the DCGW, the method further comprises:
and the core network transmits the paging message according to the TAI list and the relevant information of the DCGW.
11. The method of claim 10, wherein the sending down the paging message according to the Tracking Area Identity (TAI) list and the information related to the DCGW comprises:
the core network sends the paging message to DCGW connected with the base station where the UE in the TAI list is located; or, the core network sends the paging message to the DCGW connected to the base station where the UE in the TAI list is located and to other base stations where the UE in the TAI list is located.
12. The method of claim 8, wherein before sending the paging message to the base station under its own control, the method further comprises: acquiring information of the subordinate base station;
correspondingly, the paging message is sent to the base station subordinate to the paging message according to the information of the subordinate base station.
13. The method of claim 8, wherein when the paging message is a page for LIPA or SIPTOLN service, the issuing the paging message to a subordinate base station thereof is:
and sending the paging message to a base station where the LIPA or SIPTOLN service combined L-GW is located according to the address information of the combined L-GW of the LIPA or SIPTOLN service.
14. A core network device, the device comprising: an acquisition unit and a distribution unit; wherein,
the acquiring unit is used for acquiring relevant information of DCGW;
and the issuing unit is used for issuing the paging message according to the relevant information of the DCGW.
15. The apparatus of claim 14, wherein the issuing unit is configured to issue the paging message according to a TAI list and information related to the DCGW.
16. The device according to claim 15, wherein the issuing unit is specifically configured to: sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
17. A DCGW, wherein the DCGW comprises: a receiving unit and a transmitting unit; wherein,
the receiving unit is used for receiving a paging message;
and the sending unit is used for sending the paging message to a base station under the DCGW where the sending unit is located.
18. The DCGW of claim 17, wherein the DCGW further comprises: the information acquisition unit is used for acquiring the information of the base station under the DCGW where the information acquisition unit is located;
correspondingly, the sending unit sends the paging message to the base station under the DCGW according to the information of the base station under the DCGW.
19. The DCGW of claim 17, wherein the sending unit is configured to, when the paging message is a page for a LIPA or SIPTOLN service, send the paging message to a base station where the LIPA or SIPTOLN service jointly sets the L-GW according to address information of the LIPA or SIPTOLN service.
20. A paging system, characterized in that the system comprises: core network equipment and DCGW; wherein,
the core network equipment is used for acquiring relevant information of DCGW; sending down a paging message according to the relevant information of the DCGW;
and the DCGW is used for sending the paging message to a base station subordinate to the DCGW after receiving the paging message.
21. The system of claim 20, wherein the core network device is configured to send a paging message according to a TAI list and the information related to the DCGW.
22. The system according to claim 21, wherein the core network device is specifically configured to: sending the paging message to DCGW connected with a base station where the UE in the TAI list range is located; or sending the paging message to the DCGW to which the base station of the UE in the TAI list is connected and other base stations of the UE in the TAI list.
23. The system of claim 20, wherein the DCGW is further configured to obtain information of a base station subordinate to the DCGW; and sending the paging message to the base station subordinate to the paging message according to the information of the base station subordinate to the paging message.
24. The system of claim 20, wherein the DCGW is configured to, when the paging message is a page for the LIPA or SIPTOLN service, send the paging message to a base station where the LIPA or SIPTOLN service is located according to address information of a default L-GW of the LIPA or SIPTOLN service.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410627686.7A CN105657829A (en) | 2014-11-10 | 2014-11-10 | Paging method, paging system, core network equipment and dual-connection gateway |
| PCT/CN2015/078446 WO2016074452A1 (en) | 2014-11-10 | 2015-05-07 | Paging method, system, related device and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410627686.7A CN105657829A (en) | 2014-11-10 | 2014-11-10 | Paging method, paging system, core network equipment and dual-connection gateway |
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| CN113573383B (en) * | 2020-04-29 | 2023-04-07 | 京东方科技集团股份有限公司 | Re-network access method after mobile terminal network disconnection and related equipment |
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