CN110167002A - A kind of methods, devices and systems of location updating - Google Patents

Abstract

The embodiment of the present invention provides a kind of method of location updating, device and system, after the method for the location updating makes user equipment (UE) be moved to the second communication system from the first communication system, the position updating request including the first information is sent to the second core network entity of the second communication system, second core network entity determines third core network entity according to the first information and sends the first message including the second information to third core network entity, so that the second core network entity determines the first core network entity and sends the second message for obtaining the context of UE to the first core network entity, hereafter, third core network entity receives the context for the UE that the first core network entity is sent and forwards to the second core network entity, location updating is carried out after the context of second core network entity acquisition UE, therefore UE is not needed with applying for IP again Location and network is accessed using new IP address, avoids the problem that UE applies for network interruption overlong time caused by IP address again.

Description

A kind of methods, devices and systems of location updating

Technical field

This application involves mobile communication technology field more particularly to a kind of methods, devices and systems of location updating.

Background technique

When carrying out mobile communication, if UE (User Equipment, user equipment) is covered by first movement communication system Region be moved to the region of no first movement communication system covering, if there are cores between the first communication system and third communication system Interface between heart network entity, then UE can be moved to third communication system from the first communication system by modes such as gravity treatment or switchings System, in moving process, can keep the IP address (Internet Protocol Address, internet protocol address) of UE no Become, UE can access network without re-initiating attachment.In position updating process, the core network entity of third communication system can To obtain the context of UE from the core net of the first communication system, to be moved between completing system.

However, if not deposited positioned at the core network entity of first movement communication system and the core network entity of the second communication system In interface, then after UE is moved to the second communication system from first movement communication system, clothes are provided for UE in the second communication system The core network entity of business can not obtain the context of UE from first movement communication system for the UE core network entity for providing service, To be unable to complete the location updating of UE, UE will no longer retain in the IP address that first movement communication system uses, and UE at this time Attach request can be initiated to the second communication system and apply for that new IP address could access network according to new IP address, lead to UE The overlong time for accessing the second communication system, the long-time for causing UE to be connected to the network are interrupted.For example, if UE is by 5G the (the 5th Third-generation mobile communication technology) for Network Mobility to 3G (3rd generation mobile communication technology) network, UE can be to the core net reality of 3G network Body SGSN (Serving GPRS Support Node, Serving GPRS Support Node) initiates RAU (Routing Area Update, Routing Area Update) carry out location updating, wherein due to current 5G network core network entity AMF and 3G SGSN not There are communication interfaces, therefore SGSN can not obtain the context of UE from MME, and position updating process will fail, and UE is needed from new hair Registration process is played, so that IP address cannot keep.

In conclusion it is moved to the second communication system positioned at the UE of first movement communication system in the prior art, if first It is provided in the core network entity and the second communication system of service in mobile communication system for UE and provides the core net reality of service for UE It can not be communicated between body, location updating can not be successfully completed for the UE core network entity for providing service, UE can only connect again Enter network, leads to the overlong time of UE network interruption, be unable to maintain that IP continuity.

Summary of the invention

The application provides the methods, devices and systems of location updating, logical positioned at first movement in the prior art to solve The UE of letter system is moved to the second communication system, and UE needs re-accessing network, leads to asking for the overlong time of UE network interruption Topic.

In a first aspect, the embodiment of the present invention provides a kind of method of location updating, user equipment (UE) is from the first communication system After being moved to the second communication system, the location updating including the first information is sent to the second core network entity of the second communication system Request, second core network entity receive position updating request, determine third core network entity according to the first information, and to institute It states third core network entity and sends the first message including the second information, the third core network entity is receiving second core After the first message that heart network entity is sent, first core network entity is determined according to the second information therein, and to institute It states the first core network entity and sends second message, after first core network entity receives the second message, according to described the Two message obtain the context of the UE and send the context of UE, hereafter, third core network entity to third core network entity The context for the UE that first core network entity is sent is received, and sends the UE to second core network entity Context, for the second core network entity after receiving the context of the UE and carrying out location updating, Xiang Suoshu UE sends position Update received message.

In the above method, UE is being moved to the second communication system from the first communication system and to the second of the second communication system After core network entity sends update request, the second core network entity can determine third core network entity according to the first information, from And the context of UE can be requested to the first core network entity by third core network entity, even if in first movement communication system There is provided to provide in the core network entity and the second communication system of service for UE for UE can not carry out between the core network entity of service Communication, also can be by the second core of the second communication system after UE is moved to the second communication system by first movement communication system Network entity obtains the context of UE and carries out the location updating of UE, so that UE without applying for that IP address to access network, is kept away again The problem of exempting from network interruption overlong time caused by UE re-accessing network.

In a possible design, the first core network entity can not be communicated with second core network entity, institute Stating third core network entity is the entity that can be communicated with the third core network entity.Due to third core network entity energy It is enough to be communicated with the first core network entity, to can not be led in the first core network entity and second core network entity In the case where letter, the second core network entity can by third core network entity to the first core network entity carry out communication to from First core network entity obtains the context of UE and completes location updating.

In a possible design, if third core network entity is the core network entity in third communication system, third It, can be interim for UE distribution after core network entity receives the context for the UE that first core network entity is sent Mark, and the temporary identifier distributed is sent to second core network entity, the second core network entity can connect in location updating It is the temporary identifier that the UE is distributed by third core network entity is carried in message, so that UE is receiving the second core net reality After the location updating received message that body is sent, it is the UE that third core network entity can also be obtained from the received message of position The temporary identifier of distribution.

In a possible design, if the third core network entity is the core network entity in third communication system, UE can send the registration request including the 4th information to the core network entity of the first communication system in the first communication system, with And receiving the third core network entity of the core network entity transmission of first communication system is the interim of UE distribution Mark, which, which can carry, sends in position updating request to the second core network entity, and the 4th information includes following One or more combination: the information of the first communication system of support SRVCC of the UE；The third core network entity is described The temporary identifier of UE distribution；Indicate that the UE supports the information that the second communication system is moved to from the first communication system.

In a possible design, UE can be in the registration request sent to the core network entity of the first communication system The first communication system temporary identifier of the UE obtained before this is carried, the core network entity of the first communication system can be interim according to this Mark determines the address of the core network entity of corresponding first communication system, and when determining address and Self address are not inconsistent, The UE context in the first communication system before this is obtained from core network entity belonging to determining address.

In a possible design, if the first information in position updating request includes that the third core network entity is The temporary identifier of the UE distribution, second core network entity can determine the third core net according to the temporary identifier The address of entity, the temporary identifier are that core network entity of the UE in the first communication system in received third communication system is The temporary identifier of the UE distribution；In addition, if it is the UE points that the first information, which includes according to the third core network entity, First RAI of second communication system that the temporary identifier matched obtains, second core network entity can be according to described the One RAI determines the address of the third core network entity；If the first information includes the first instruction information, first instruction Information is for making second core network entity know the context for obtaining the UE by third core network entity, alternatively, institute The first instruction information is stated for making second core network entity know that the UE is moved to the second communication from the first communication system System, then the second core network entity can after receiving the first instruction information, using preset target third core network entity as The third core network entity.

In a possible design, the second information that the second core network entity is sent to third core network entity be can be Second information includes second communication system obtained according to the third core network entity for the temporary identifier of UE distribution The first P-TMSI and the first RAI of system, then the third core network entity according to the first P-TMSI, the first RAI and First corresponding relationship is determined as providing the address of the first core network entity of service for the UE in the first communication system； If in addition the second information is the second communication system of third communication system temporary identifier mapping of the UE in third communication system The first P-TMSI and the first RAI of system, then third core network entity is according to the first P-TMSI, the first RAI and described Second corresponding relationship determines the IMSI of the UE, and requests to be institute in the first communication system to HSS+UDM using the IMSI It states UE and the first core network entity of service is provided, and receive the ground for first core network entity that the HSS+UDM is sent Location.Wherein, third core network entity, can be according to the first core network entity if it is the core network entity in third communication system The third message of transmission is that the UE distributes temporary identifier, and is stored as the temporary identifier and first core of the UE distribution The first corresponding relationship between the address of network entity, and/or, storage third core network entity is the temporary identifier of UE distribution The second corresponding relationship between the address of first core network entity, wherein the IMSI of UE is first core network entity The third core network entity is sent to by the third message.It is asked in addition, the second information can be UE in location updating Ask it is middle carrying and to the second core network entity send.

In a possible design, third core network entity can include third information in determining the first message Afterwards, determination provides the first core network entity of service in the first communication system for the UE, and wherein third information is for making institute It states third core network entity and knows the context for obtaining the UE by the first core network entity, alternatively, the third information is used In making the third core network entity know that the UE is moved to the second communication system from the first communication system；Third information can be with It is that UE is carried in position updating request and sent to the second core network entity.The third information can be the branch of the UE The information of the first communication system SRVCC is held, and/or, indicate that the UE supports to be moved to the second communication system from the first communication system The information of system.

In a possible design, if it is that the UE is distributed that the second message, which includes first core network entity, Temporary identifier, then the first core network entity is according to the temporary identifier acquisition that first core network entity is UE distribution The context of UE；If the second message includes the IMSI of the UE, the first core network entity is obtained according to the IMSI of the UE Take the context of the UE.

In a possible design, the first communication system is 5G communication system, and second communication system is 3G communication System, first core network entity are AMF, and second core network entity is SGSN；Or first communication system it is logical for 3G Letter system, second communication system are 5G communication system, and first core network entity is SGSN, and second core net is real Body is AMF.

In a possible design, third core network entity is MME.

Second aspect, the embodiment of the present application provide a kind of user equipment (UE) of location updating, including transceiver, memory and Processor, wherein the transceiver is communicated for the UE, the memory is for storing application program, the processing Device, for executing the application program stored in the memory, the method for executing location updating described in above-mentioned first aspect.

The third aspect, the embodiment of the present application provide a kind of the second core network entity of location updating, including transceiver and place Device is managed, wherein the transceiver is communicated for the UE, the memory is used for storing application program, the processor The application program stored in the execution memory, the method for executing location updating described in above-mentioned first aspect.

Fourth aspect, the embodiment of the present application provide a kind of third core network entity of location updating, and the third core net is real Body includes transceiver and processor, wherein the transceiver is communicated for the UE, the memory is for storing application Program, the processor execute position described in above-mentioned first aspect for executing the application program stored in the memory The method of update.

5th aspect, the embodiment of the present application provide a kind of the first core network entity of location updating, including transceiver and place Device is managed, wherein the transceiver is communicated for the UE, the memory is used for storing application program, the processor The application program stored in the execution memory, the method for executing location updating described in above-mentioned first aspect.

6th aspect, the embodiment of the present application provide a kind of computer readable storage medium, deposit in the readable storage medium storing program for executing Computer program is contained, when the computer program is called by computer to be executed, computer can be made to realize above-mentioned second Function performed by UE described in any one possible design in aspect and in second aspect.

7th aspect, the embodiment of the present application provide a kind of computer readable storage medium, deposit in the readable storage medium storing program for executing Computer program is contained, when the computer program is called by computer to be executed, computer can be made to realize above-mentioned third Function performed by second core network entity described in any one possible design in aspect and in the third aspect.

Eighth aspect, the embodiment of the present application provide a kind of computer readable storage medium, deposit in the readable storage medium storing program for executing Computer program is contained, when the computer program is called by computer to be executed, computer can be made to realize the above-mentioned 4th Function performed by third core network entity described in any one possible design in aspect and in fourth aspect.

9th aspect, the embodiment of the present application provide a kind of computer readable storage medium, deposit in the readable storage medium storing program for executing Computer program is contained, when the computer program is called by computer to be executed, computer can be made to realize the above-mentioned 5th Function performed by first core network entity described in any one possible design in aspect and in the 5th aspect.

Tenth aspect, the embodiment of the present application provide a kind of system of location updating, including above-mentioned second aspect and second Any one in UE, the above-mentioned third aspect and the third aspect described in any one possible design in aspect may Design described in any one possible design in the second core network entity, above-mentioned fourth aspect and fourth aspect Described in any one possible design in the third core network entity and above-mentioned 5th aspect and the 5th aspect The first core network entity, for realizing the method for location updating described in above-mentioned first aspect.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the user equipment (UE) of location updating provided by the embodiments of the present application；

Fig. 2 is a kind of structural schematic diagram of second core network entity of location updating provided by the embodiments of the present application；

Fig. 3 is a kind of structural schematic diagram of the third core network entity of location updating provided by the embodiments of the present application；

Fig. 4 is a kind of structural schematic diagram of first core network entity of location updating provided by the embodiments of the present application；

Fig. 5 is the structural schematic diagram of 5G communication system network architecture in the prior art；

Fig. 6 is a kind of step schematic diagram of the method for location updating provided by the embodiments of the present application；

Fig. 7 is a kind of UE facing in the acquisition third core network entity distribution of the first communication system provided by the embodiments of the present application When the flow diagram of method that identifies；

Fig. 8 is a kind of idiographic flow schematic diagram (one) of the method for location updating provided by the embodiments of the present application；

Fig. 9 is a kind of idiographic flow schematic diagram (two) of the method for location updating provided by the embodiments of the present application；

Figure 10 is a kind of idiographic flow schematic diagram (three) of the method for location updating provided by the embodiments of the present application；

Figure 11 is a kind of idiographic flow schematic diagram (four) of the method for location updating provided by the embodiments of the present application；

Figure 12 is a kind of structural schematic diagram of the system of location updating provided by the embodiments of the present application.

Specific embodiment

The embodiment of the present application provides a kind of methods, devices and systems of location updating, and the method for the location updating makes UE is after being moved to the second communication system from first movement communication system, second core network entity of the UE into the second communication system Position updating request is sent, determines that third core net is real according to the first information in position updating request by the second core network entity Body simultaneously sends first message to third core net, and third core network entity is determined according to the second information in first message first The first core network entity of service is provided for the UE in communication system, and to UE's described in the first core network entity request Context, hereafter, the context for the UE that third core network entity will acquire are sent to the second core network entity, and the second core net is real After body completes location updating, location updating received message is sent to terminal, the location updating received message is received by UE later.It adopts With above method, even if providing in first movement communication system for UE in the core network entity and the second communication system of service is UE There is provided can not be communicated between the core network entity of service, and UE can be also obtained by the second core network entity in the first communication system In context to carry out location updating, therefore UE is not needed to apply for IP address again and is utilized new IP address access net Network avoids the problem that UE applies for network interruption overlong time caused by IP address again.

In order to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application make into One step it is described in detail.Wherein, in the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or two with On.In addition, it is necessary to understand, in the description of the embodiment of the present application, the vocabulary such as " first ", " second " are only used for distinguishing and retouch The purpose stated, is not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.

It should be noted that the method for location updating provided by the present application can be executed by device.In user side, which can To be the communication chip in UE or UE, such as modem (Modem).

As shown in Figure 1, in one embodiment, UE100 provided in an embodiment of the present invention may include processor 101, Memory 102 and transceiver 103, wherein the memory 102 is stored with computer program, and the transceiver 103 is used for It is communicated between UE100 and the first core network entity, the processor 101 is used to call to store in the memory 102 Computer program, and the method for executing location updating provided by the embodiment of the present invention.

In an implementation, the processor 101 can be according to the computer program stored in the memory 102, from After one communication system is moved to the second communication system, sent out by transceiver 103 to the second core network entity of the second communication system Position updating request is sent, includes the first information in the position updating request, the first information is used for second core net Entity determines third core network entity；And the location updating that second core network entity is sent is received by transceiver 103 Received message, the location updating received message is second core network entity obtained from the third core network entity it is described It is sent to the UE after the context of UE, the context of the UE is the third core network entity from the first core network entity It obtains, first core network entity is to provide the core network entity of service in the first communication system for the UE.

It should be noted that the tool between above-mentioned processor 101, memory 102 and transceiver 103 is not limited in the embodiment of the present application Body connect medium, the embodiment of the present application in Fig. 1 between processor 101, memory 102 and transceiver 103 pass through bus 104 Connection, bus 104 indicate that the connection type between other components is only to be schematically illustrated, not in Fig. 1 with thick line Regard it as and is limited.The bus 104 can be divided into address bus, data/address bus, control bus etc..Only to be used in Fig. 1 convenient for indicating One thick line indicates, it is not intended that an only bus or a type of bus.

In an implementation, UE can be terminal (Terminal), mobile station (MS, Mobile Station), mobile terminal Equipment such as (Mobile Terminal), which can be communicated with the core network entity of one or more communication systems, and be connect The network service provided by core network entity.For example, the UE in the embodiment of the present application can be mobile phone and (or be " honeycomb " phone), the computer with mobile terminal etc., UE can also be portable, pocket, hand-held, built-in computer Or vehicle-mounted mobile device.UE is also possible to the communication chip with communication module.

In network side, the device can be the first core network entity, the second core network entity, third core network entity or Chip or communication module in these core network entities, if the first core network entity is the AMF entity in 5G communication system, the Two core network entities can be the SGSN in 3G or 2G communication system；If the first core network entity is in 3G or 2G communication system SGSN, then the second core network entity can be the AMF entity in 5G communication system；Third core network entity can be 4G communication system The functional module in core network entity or core network entity in system in MME entity or preset 4G or 5G communication system.

As shown in Fig. 2, in one embodiment, the second core network entity 200 provided in an embodiment of the present invention can wrap Include processor 201, memory 202 and transceiver 203, wherein the memory 202 is stored with computer program, the transmitting-receiving Device 203 is communicated for the first core network entity 200 between UE, third core network entity, and the processor 201 is for adjusting With the computer program stored in the memory 202, and the method for executing location updating provided by the embodiment of the present invention.

In an implementation, the processor 201 can pass through receipts according to the computer program stored in the memory 202 It sends out device 203 and receives the position updating request that UE is sent, third core is determined according to the first information in the position updating request Network entity sends the first message including the second information to the third core network entity by transceiver 203, passes through transceiver 203 receive the context for the UE that the third core network entity is sent, and after carrying out location updating, pass through transceiver 203 send location updating received message to the UE, wherein second information is being received for the third core network entity Determination provides the first core network entity of service in the first communication system for the UE after the first message, and the UE's is upper Hereafter the third core network entity is obtained from first core network entity.

It should be noted that the tool between above-mentioned processor 201, memory 202 and transceiver 203 is not limited in the embodiment of the present application Body connect medium, the embodiment of the present application in Fig. 2 between processor 201, memory 202 and transceiver 203 pass through bus 204 Connection, bus 204 indicate that the connection type between other components is only to be schematically illustrated, not in Fig. 2 with thick line Regard it as and is limited.The bus 204 can be divided into address bus, data/address bus, control bus etc..Only to be used in Fig. 2 convenient for indicating One thick line indicates, it is not intended that an only bus or a type of bus.

As shown in figure 3, in one embodiment, third core network entity 300 provided in an embodiment of the present invention can wrap Include processor 301, memory 302 and transceiver 303, wherein the memory 302 is stored with computer program, the transmitting-receiving Device 303 between third core network entity 300 and the first core network entity, the second core network entity for being communicated, the place Reason device 301 executes position provided by the embodiment of the present invention for calling the computer program stored in the memory 302 The method of update.

In an implementation, the processor 301 can pass through receipts according to the computer program stored in the memory 302 It sends out device 303 and receives the first message that the second core network entity is sent, determined according to the second information for including in the first message The first core network entity of service is provided for the UE in the first communication system, by transceiver 303 to first core Network entity sends second message, and the context for the UE that first core network entity is sent is received by transceiver 303, with And the context of the UE is sent to second core network entity by transceiver 303, wherein the first message is described Second core network entity, which receives, to be sent after the position updating request that the UE is sent, and the second message is used for first core Heart network entity obtains the context of the UE.

It should be noted that the tool between above-mentioned processor 301, memory 302 and transceiver 303 is not limited in the embodiment of the present application Body connect medium, the embodiment of the present application in Fig. 3 between processor 301, memory 302 and transceiver 303 pass through bus 304 Connection, bus 304 indicate that the connection type between other components is only to be schematically illustrated, not in Fig. 3 with thick line Regard it as and is limited.The bus 304 can be divided into address bus, data/address bus, control bus etc..Only to be used in Fig. 3 convenient for indicating One thick line indicates, it is not intended that an only bus or a type of bus.

As shown in figure 4, in one embodiment, third core network entity 400 provided in an embodiment of the present invention can wrap Include processor 401, memory 402 and transceiver 403, wherein the memory 402 is stored with computer program, the transmitting-receiving Device 403 between the first core network entity 400 and third core network entity for being communicated, and the processor 401 is for calling The computer program stored in the memory 402, and the method for executing location updating provided by the embodiment of the present invention.

In an implementation, the processor 401 can pass through receipts according to the computer program stored in the memory 402 It sends out device 403 and receives the second message that third core network entity is sent, the context of the UE is obtained according to the second message, with And the context of the UE is sent to the third core network entity by transceiver 403.

It should be noted that the tool between above-mentioned processor 401, memory 402 and transceiver 403 is not limited in the embodiment of the present application Body connect medium, the embodiment of the present application in Fig. 4 between processor 401, memory 402 and transceiver 403 pass through bus 404 Connection, bus 404 indicate that the connection type between other components is only to be schematically illustrated, not in Fig. 4 with thick line Regard it as and is limited.The bus 404 can be divided into address bus, data/address bus, control bus etc..Only to be used in Fig. 4 convenient for indicating One thick line indicates, it is not intended that an only bus or a type of bus.

In an implementation, the first core network entity in the embodiment of the present application can be the AMF in 5G communication system, then and second Core network entity can be the SGSN in 3G or 2G communication system, and UE is being moved to 3G or 2G communication system from 5G communication system Afterwards, to the position updating request that SGSN is sent be RAU (Routing area update, route area update) request or Attach (attachment) request.

It is illustrated in figure 5 5G communication system network architecture, AMF501 can be communicated with UE502 and be provided movement to UE502 Property management service and access-in management service, wherein AMF501 can pass through N26 interface 503 and realize communication with MME504.This Shen Please the second core network entity in embodiment can be the SGSN505 in 3G or 2G communication system, wherein SGSN505 in 3G or Mobile management service, access service and bearer management service are provided to UE502 in 2G communication system, UE502 is logical from other Letter system, such as 4G, gravity treatment or after switching to 3G or 2G communication system are initiated to SGSN504 for carrying out location updating RAU request.It, can be real as the third core net in the embodiment of the present application using MME504 in a kind of feasible embodiment Body, other nodes that can also will be communicated with AMF501 are as the third core network entity in the embodiment of the present application.

In addition, the first core network entity in the embodiment of the present application can be the SGSN in 3G or 2G communication system, then Two core network entities can be the AMF in 5G communication system, and UE gravity treatment or is switched to from other communication systems, such as 4G After 5G communication system, the position updating request sent to AMF is disappeared for carrying out the Registration of location updating (registration) Breath.

In addition, it is necessary to illustrate, the first communication system in the embodiment of the present application is corresponding with the first core network entity Communication system, the second communication system is communication system corresponding with the second core network entity, for example, if the first core network entity It is the AMF entity in 5G communication system, the second core network entity is the SGSN in 3G or 2G communication system, then the first communication system It is 5G communication system, second generation communication system can be 3G or 2G communication system.In an implementation, the first communication system is led to second Letter system is different communication system, alternatively, the first communication system is the communication system in different generations from the second communication system.

For ease of description, being below AMF with the first core network entity, the first communication system is 5G communication system, the second core Heart network entity be SGSN, the second communication system be 3G communication system for, illustrate location updating provided by the embodiments of the present application Method.

As shown in fig. 6, the method for location updating provided by the embodiments of the present application the following steps are included:

After S1:UE601 is moved to 3G communication system from 5G communication system, service is provided for UE601 into 3G communication system SGSN602 send position updating request, wherein in position updating request include the first information；

S2:SGSN602 receives the position updating request including the first information；

S3:SGSN602 determines third core network entity 603 according to the first information in position updating request；

S4:SGSN602 sends the first message including the second information to third core network entity 603；

S5: third core network entity 603 receives the first message including the second information；

S6: third core network entity 603 determines in 5G communication system according to the second information for including in first message is UE601 provides the AMF604 of service；

S7: third core network entity 603 sends second message to AMF604；

S8:AMF604 receives second message；

S9:AMF604 is according to the context of the second acquisition of information UE601；

S10:AMF604 sends the context of UE601 to third core network entity 603；

S11: third core network entity 603 receives the context for the UE601 that AMF604 is sent；

S12: the context of received UE601 is sent to SGSN602 by third core network entity 603；

S13:SGSN602 receives the context for the UE601 that third core network entity 603 is sent；

S14:SGSN602 sends location updating receiving to UE601 and disappears after carrying out location updating according to the context of UE Breath；

S15:UE601 receives the location updating received message that SGSN602 is sent.

Using above method, UE601 is after being moved to 3G communication system from 5G communication system, to SGSN602 launch position Request is updated, SGSN602 can provide service into 5G communication system by third core network entity 603 for UE601 AMF604 requests the context of UE601, and after the context for obtaining UE601, SGSN602 is able to carry out location updating, and complete Location updating received message is sent to UE601 at after location updating, to avoid being moved in the UE601 for being located at 5G communication system After 3G communication system, it can not carry out UE601's in 3G communication system for the UE601 core network entity SGSN602 for providing service Location updating, UE601 can only re-accessing network the problem of leading to the overlong time of UE network interruption.

In an implementation, the SGSN602 in 3G communication system is receiving the upper of the UE601 of the transmission of third core network entity 603 After hereafter, can further according to the context of UE601 to HSS (Home Subscriber Server, server ownership signing Client server)+UDM (Unified Data Manager, uniform data manage platform) sends to update and requests and receive HSS+ The update response message that UDM is sent saves the address of SGSN, to complete the position updating process of UE in HSS+UDM.

Optionally, in one embodiment, the first core network entity and second core network entity do not have interface, from And can not directly be communicated, the third core network entity is that there are interfaces with second core network entity, and can The entity communicated with second core network entity.

Specifically, in 5G communication system network architecture as shown in Figure 5, can pass through between AMF501 and MME504 N26 interface 503 is communicated, however, not having communication interface between the SGSN505 in AMF501 and 3G communication system, therefore Can not directly be communicated between AMF501 and SGSN505, thus in the prior art, can not during location updating The transmitting that UE context is carried out between AMF501 and SGSN505, is also just unable to complete location updating.According to the embodiment of the present application institute The method of the location updating of offer, using AMF501 as the first core network entity and using SGSN505 as the second core network entity, Or using SGSN505 as the first core network entity and using AMF501 as the second core network entity, can AMF501 with The transmitting-receiving that UE context is realized between SGSN505, to realize the process of location updating.

Optionally, in one embodiment, SGSN602 can also be in the location updating received message sent to UE601 It is middle to carry context of the UE601 in 3G communication system, then UE601 receive location updating received message that SGSN602 is sent it Afterwards, UE601 context used in 3G communication system can be obtained from the location updating received message.

In addition in an implementation, if third core network entity 603 is MME, third core network entity 603 is receiving AMF604 After the context of the UE601 of transmission, the interim mark of 4G communication system (i.e. the affiliated communication system of MME) can also be distributed for UE601 Know (GUTI, Globally Unique Temporary UE Identity, the unique interim UE mark in the whole world) and by the interim mark Know to SGSN602 and send, SGSN602 can carry the 4G- of the transmission of third core network entity 603 in location updating received message GUTI, so that UE601 after receiving location updating received message, can therefrom obtain facing for the distribution of third core network entity 603 When identify.

Optionally, in one embodiment, UE601 in the position updating request that S1 is sent to SGSN602 first Information includes the combination of one or more of:

Third core network entity 603 is that the 4G communication system of UE distribution is temporarily marked；

The 3G communication obtained according to the 4G communication system temporary identifier that the third core network entity 603 is UE distribution The first RAI (Routing Area Identity, Routing Area Identifier) of system；

First instruction information, the first instruction information is for knowing second core network entity by third core Network entity obtains the context of the UE, alternatively, the first instruction information is for making second core network entity know institute It states UE and is moved to the second communication system from the first communication system.Here, the UE is moved to the second communication from the first communication system System is it can be appreciated that the UE is removed from the first communication system.

In an implementation, if third core network entity 603 be MME, UE601 can be moved to 3G communication system and to Before SGSN602 sends position updating request, it is UE distribution that third core network entity 603 is received in 5G communication system 4G communication system temporary identifier, so that UE601 can carry third core after being moved to 3G communication system in the first information Network entity 603 is the 4G communication system temporary identifier of UE distribution, or the 3G mapped according to 4G communication system temporary identifier First RAI of communication system and the first P-TMSI, or the 3G communication system according to the mapping of 4G communication system temporary identifier the One RAI.

In one embodiment, if third core network entity 603 is MME, as shown in fig. 7, UE601 can be logical to 5G When AMF604 in letter system requests registration, the 4G communication system that third core network entity 603 distributes is obtained according to following methods Temporary identifier:

Step 701:UE601 sends the registration request including the 4th information when accessing 5G communication system, to AMF604, the Four information are known for AMF604 requests to distribute 4G communication system temporary identifier for UE601 to third core network entity 603；

Step 702:AMF604 is in determining registration request comprising being sent after the 4th information to third core network entity 603 Third message is that UE601 distributes 4G communication system temporary identifier for requesting third core network entity 603；

Step 703: third core network entity 603 is logical to UE601 distribution 4G after the third message for receiving AMF604 transmission Letter system temporary identifier 4G-GUTI, and the 4G communication system temporary identifier of distribution is sent to AMF604；

Step 704:AMF604 is after the 4G communication system temporary identifier for receiving the transmission of third core network entity 603, by this 4G communication system temporary identifier is sent to UE601；

Step 705:UE601 receives the 4G communication system that the third core network entity 603 that AMF604 is sent distributes and temporarily marks Know.

Using above method, UE601 can obtain third core network entity by AMF604 when accessing 5G communication system The 603 4G communication system temporary identifiers distributed for UE601.

Wherein, the 4th information in registration request that UE601 is sent to AMF604, can be the group of one or more of It closes:

Support 5G communication system SRVCC (Single Radio Voice Call Continuity, the single-frequency language of UE601 Voice call continuity) information, wherein support 5G communication system SRVCC to can be understood as supporting 5G to 3G communication system SRVCC；

Third core network entity 603 is the temporary identifier of UE601 distribution, wherein third core network entity 604 is MME；

Indicate that the UE601 supports the information that 3G communication system is moved to from 5G communication system.

In an implementation, UE601 can also carry the core network entity in 5G communication system in the registration request as UE601 points The 5G communication system temporary identifier 5G-GUTI matched, then the AMF604 for receiving registration request can be logical according to the 5G in the 4th information Letter system temporary identifier determines the address AMF for distributing the 5G communication system temporary identifier, and in the address for determining the AMF and itself After address is different, from determining that AMF obtains the context of UE601, later, according to the step 702 to third core network entity 603 Send third message.The address AMF can be understood as the IP address of AMF, the mark of AMF or the FQDN (Fully of AMF Qualified Domain Name, fully qualified domain name) etc. can be identified for that the information of AMF.

In an implementation, if the first information includes that the 4G communication system that third core network entity 603 is UE601 distribution is temporarily marked Know 4G-GUTI, SGSN602 can be UE601 distribution according to third core network entity 603 after receiving position updating request 4G communication system temporary identifier determines the address of third core network entity 603；In addition, if the first information includes according to third core Network entity 603 is the first RAI of the 4G communication system temporary identifier mapping of UE601 distribution, or, the first RAI and the first P-TMSI, SGSN602 can determine the address of third core network entity 603 after receiving position updating request according to the first RAI, or Person can determine the address of third core network entity 603 according to the first RAI and the first P-TMSI.

In specific implementation, the side of the address of third core network entity 603 is determined according to the first RAI and the first P-TMSI Method can be, and SGSN602 obtains the 4G-GUTI of UE601 according to the first RAI and the first P-TMSI, and obtain from 4G-GUTI the The address of three core network entities 603 is to determine third core network entity 603.The address of third core network entity can be understood as The IP address of three core network entities, the mark of third core network entity or the FQDN (Fully of third core network entity Qualified Domain Name, fully qualified domain name) etc. can be identified for that the information of third core network entity.

In addition, the first instruction information is for making second core net if the first information includes the first instruction information Entity knows the context that the UE is obtained by third core network entity, alternatively, the first instruction information is described for making Second core network entity knows that the UE is moved to the second communication system from the first communication system, then SGSN602 can received Using preset target third core network entity as third core network entity 603 after first instruction information, for example, preset address is The MME of address A is target third core network entity, then in S3, SGSN602 is using the MME that address is address A as third core Network entity 603, and first message is sent to the MME in S4.Alternatively, it is also possible to set the core network entity other than MME to Target third core network entity, as having the core net being specially arranged in the core network entity or 4G of the 5G of preset address real Body, target third core network entity are also possible to the MME with known address.Here, for making second core network entity Know that the UE is moved to the second communication system from the first communication system, it is understood that are as follows: for making second core net Entity knows that the UE is removed from the first communication system.

In an implementation, after step 703, third core network entity 603 can store the 4G communication system distributed for UE601 The first corresponding relationship between temporary identifier and the address of AMF604.First corresponding relationship is used for the third core network entity in S6 After 603 receive the second information, determination provides the AMF604 of service in 5G communication system for UE601.

In addition, if AMF604 carries the IMSI of UE601 in third message, then third core network entity in step 702 603 can also be stored as the second corresponding relationship between the 4G communication system temporary identifier of UE601 distribution and the IMSI of UE601. Second corresponding relationship is used in S6, and third core network entity 603 receives the IMSI of determining UE601 after the second information, described IMSI is inquired to HSS+UDM for third core network entity 603 and is provided service in 5G communication system for the UE with the IMSI AMF604.

Optionally, in S4, the second information in first message that SGSN602 is sent to third core network entity 603 can To include the combination of one or more of:

The 3G communication system obtained according to the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution The first P-TMSI (Packet-Temporary Mobile Subscriber Identity, packet domain temporary mobile subscriber body Part mark) and the first RAI of 3G communication system；

AMF604 is the 5G communication system temporary identifier of UE distribution；

According to the 2nd P-TMSI of the 3G communication system that the 5G communication system temporary identifier that AMF604 is UE601 distribution obtains With the 2nd RAI of 3G communication system.Here, the 2nd P-TMSI of the 3G communication system obtained according to 5G communication system temporary identifier It with the 2nd RAI, specifically can be, 4G communication system temporary identifier, and further root obtained according to 5G communication system temporary identifier According to the 2nd P-TMSI and the 2nd RAI of the 3G communication system that 4G communication system temporary identifier obtains.

In an implementation, if third core network entity 603 is MME, SGSN602 can be to third core network entity 603 In the second information in the first message of transmission, the 4G communication system according to third core network entity 603 for UE601 distribution is carried The first RAI of the first P-TMSI and 3G communication system for the 3G communication system that temporary identifier maps.

The 3G communication system that third core network entity 603 is mapped in the 4G communication system temporary identifier for receiving UE601 The first RAI of the first P-TMSI and 3G communication system after, can be according to the first P-TMSI, the first RAI and as shown in FIG. 6 The first corresponding relationship stored after step 703, determination are temporarily marked according to the 4G communication system that the first P-TMSI and the first RAI are obtained Know determination and provide the AMF604 of service in 5G communication system for UE601, wherein can be obtained according to the first P-TMSI and the first RAI It is the 4G communication system temporary identifier of UE601 distribution to third core network entity 603, further according to the first corresponding relationship, really The corresponding AMF of the 4G communication system temporary identifier is determined to provide the AMF604 of service in 5G system for UE601；In addition, third core Heart network entity 603 can also determine the IMSI of UE601, into one according to the first P-TMSI, the first RAI and the second corresponding relationship Step inquires to HSS+UDM according to IMSI and provides the AMF604 of service in 5G communication system for the UE601 with the IMSI, wherein The 4G communication system that third core network entity 603 is UE601 distribution can be obtained according to the first P-TMSI and the first RAI temporarily to mark Know, further according to the second corresponding relationship, determines the IMSI of the corresponding UE of 4G communication system temporary identifier.

It is temporarily marked in addition, SGSN602 can carry the 5G communication system that AMF604 is UE distribution in second information Know, third core network entity 603 can determine in 5G communication system according to 5G communication system temporary identifier provides service for UE601 AMF604；SGSN602 can also be carried in the second information temporarily to be marked according to the 5G communication system that AMF604 is UE601 distribution Know the 2nd RAI of the 2nd P-TMSI and 3G communication system of 3G communication system that mapping obtains, third core network entity 603 can be with The 5G communication that AMF604 is UE601 distribution is obtained according to the 2nd RAI of the 2nd P-TMSI and 3G communication system of 3G communication system System temporary identifier further obtains the address of AMF604.Third core network entity 603 is according to the 2nd P- of 3G communication system 2nd RAI of TMSI and 3G communication system obtains the 5G communication system temporary identifier that AMF604 is UE601 distribution, specifically includes: 4G communication system temporary identifier is obtained according to the 2nd RAI of the 2nd P-TMSI and 3G communication system of 3G communication system, goes forward side by side one Step obtains 5G communication system temporary identifier according to 4G communication system temporary identifier.

In addition, in an implementation, the second information can carry in the location update message that UE601 is sent to SGSN602, SGSN602 includes the second letter being sent after obtaining above-mentioned second information in location update message to third core network entity 603 The first message of breath.

It optionally, can also include the in the first message that SGSN602 is sent to third core network entity 603 in S4 Three information, the third information obtain the UE601's by AMF604 for knowing the third core network entity 603 Hereafter, alternatively, the third information is for making the third core network entity 603 know that the UE601 is moved from 5G communication system 3G communication system is moved, then after third core network entity 603 includes third information in determining first message, according to the received The second information determination in one message provides the AMF604 of service in 5G communication system for the UE601.In an implementation, third Information can be UE601 and carry in position updating request and be sent to SGSN602's.Here, for making the third core Network entity knows that the UE is moved to 3G communication system from 5G communication system, it is understood that are as follows: for making the third core Network entity knows that the UE is removed from 5G communication system.

In one embodiment, third information can be the information of the support 5G communication system SRVCC of UE601, and/ Or, indicating that UE601 supports the information for being moved to 3G communication system from 5G communication system.Wherein, support that 5G communication system SRVCC can To be interpreted as supporting the SRVCC of 5G to 3G communication system.

Optionally, in S7, third core network entity 603 can be carried into the second message that AMF604 is sent AMF604 is the 5G communication system temporary identifier of UE601 distribution, and AMF604 is in the 5G communication system temporary identifier for receiving UE601 Afterwards, the upper and lower of the UE with 5G communication system temporary identifier can be obtained to SMF+PGW-C according to 5G communication system temporary identifier Text, later, AMF604 send the context of determining UE601 to third core network entity 603；In addition, third core network entity 603 can also carry the IMSI of UE601 in second message, AMF604 after receiving the IMSI of UE601, can according to IMSI to SMF+PGW-C obtains the context of UE601, and later, AMF604 sends the upper of determining UE601 to third core network entity 603 Hereafter.

In one embodiment, if third core network entity 603 is MME, UE can be directly in 4G communication system It is registered, and obtains temporary identifier 4G-GUTI of the UE in 4G communication system in registration process.

As shown in figure 8, if providing the first core network entity of service in the first communication system for UE601 is AMF604, the One communication system is 5G communication system, and the second core network entity is SGSN602, and the second communication system is 3G communication system, third Core network entity 603 is MME, third core network entity 603 store the 4G communication system temporary identifier of promising UE601 distribution with The second corresponding relationship between the IMSI of UE601, the first information in RAU request or Attach request that UE601 is sent include According to the 3G communication system for the UE601 that the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution obtains It is that UE601 is distributed that the second information in RAU request that first RAI, UE601 are sent, which includes according to third core network entity 603, The first P-TMSI and the first RAI for the 3G communication system that 4G communication system temporary identifier obtains, wherein 4G communication system is temporarily marked Knowledge is UE601 received from AMF604 in 5G communication system, then UE601 is being moved to the second communication system from the first communication system After system carry out location updating process the following steps are included:

For the convenience of description, being described so that RAU is requested as an example below.

Step 801:UE601 sends RAU request to SGSN602, and the RAU request includes that third core network entity 603 is The first P-TMSI and the first RAI for the 3G communication system that the 4G communication system temporary identifier of UE601 distribution obtains；

Step 802:SGSN602 receive RAU request after, according to RAU request in third core network entity 603 be UE601 First RAI of the 3G communication system that the 4G communication system temporary identifier of distribution obtains, determines the ground of third core network entity 603 Location；

Step 803:SGSN602 is sent out according to the address of determining third core network entity 603 to third core network entity 603 First message is sent, the first message includes that the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution obtains The first P-TMSI and the first RAI of the 3G communication system obtained；

Step 804: third core network entity 603 determines after receiving first message according to the first P-TMSI and the first RAI Third core network entity 603 is the 4G communication system temporary identifier of UE601 distribution, and determines that 4G is communicated according to the second corresponding relationship The corresponding IMSI of system temporary identifier is the IMSI of UE601；

Step 805: third core network entity 603 to HSS+UDM send UE601 IMSI, for make HSS+UDM according to The address of the AMF604 of service is provided in the IMSI inquiry 5G communication system of UE601 for UE601；

After step 806:HSS+UDM inquires the address of AMF604 according to the IMSI of UE601, to third core network entity 603 Send the address of AMF604；

Step 807: third core network entity 603 is sent out after receiving the address of AMF604 of HSS+UDM inquiry to AMF604 Second message is sent, second message includes the IMSI of UE601；

Step 808:AMF604 is after the second message for receiving the transmission of third core network entity 603, and AMF604 is to SMF+ PGW-C sends the IMSI of UE601, for making SMF+PGW-C according to the context of the IMSI of UE601 inquiry UE601；

Step 809:SMF+PGW-C according to after the context of the IMSI of the UE601 UE601 inquired by UE601 up and down Text is sent to AMF604；

Step 810:AMF604 sends out the context of UE601 after the context for receiving the UE601 that SMF+PGW-C is sent It send to third core network entity 603；

Step 811: after third core network entity 603 receives the context for the UE601 that AMF604 is sent, by the upper of UE601 Hereafter it is sent to SGSN602；

Step 812:SGSN602 sends to HSS+UDM after receiving the context of UE601 and updates request；

Step 813:SGSN602 receives the update request-reply message that HSS+UDM is sent；

The context of UE601 is carried and is sent in RAU received message to UE601 by step 814:SGSN602；

Step 815:UE601 therefrom obtains the context of UE601 after receiving the RAU received message that SGSN602 is sent.

Using above method, the UE601 positioned at 5G communication system can be after being moved to 3G communication system, to SGSN602 Send the of the 3G communication system obtained comprising the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution The RAU of one P-TMSI and the first RAI request, SGSN602 according to the RAU request can by third core network entity 603 from The context of UE601 is obtained for the UE601 AMF604 for providing service in 5G communication system, is led to complete UE601 and be moved to 3G Location updating after letter system, wherein SGSN602 determines the address of third core network entity 603, third core according to the first RAI Heart network entity 603 determines that third core network entity 603 is the 4G communication system of UE601 distribution according to the first P-TMSI and the first RAI After temporary identifier of uniting, the IMSI of UE601 is determined according to the second corresponding relationship of storage, and be to HSS+UDM inquiry according to IMSI UE601 provides the address of the AMF of service.

As shown in figure 9, if providing the first core network entity of service in the first communication system for UE601 is AMF604, the One communication system is 5G communication system, and the second core network entity is SGSN602, and the second communication system is 3G communication system, third Core network entity 603 is MME, and third core network entity 603 stores the 4G communication system temporary identifier and 5G of promising UE601 distribution The first corresponding relationship between the address of the AMF604 of service is provided in communication system for UE601, third core network entity 603 is also Store the second corresponding relationship between the 4G communication system temporary identifier of promising UE601 distribution and the IMSI of UE601, UE601 hair It is that the 4G communication system that UE601 is distributed temporarily is marked that the first information in RAU request sent, which includes according to third core network entity 603, Know the first RAI of the 3G communication system of the UE601 obtained, the second information in RAU request that UE601 is sent includes according to third Core network entity 603 is the first P-TMSI and for the 3G communication system that the 4G communication system temporary identifier of UE601 distribution obtains One RAI, wherein 4G communication system temporary identifier is UE601 received from AMF604 in 5G communication system, then UE601 is from One communication system be moved to after the second communication system the process for carrying out location updating the following steps are included:

Step 901:UE601 sends RAU request to SGSN602, and the RAU request includes that third core network entity 603 is The first P-TMSI and the first RAI for the 3G communication system that the 4G communication system temporary identifier of UE601 distribution obtains；

Step 902:SGSN602 receive RAU request after, according to RAU request in third core network entity 603 be UE601 First RAI of the 3G communication system that the 4G communication system temporary identifier of distribution obtains, determines the ground of third core network entity 603 Location；

Step 903:SGSN602 is sent out according to the address of determining third core network entity 603 to third core network entity 603 First message is sent, the first message includes that the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution obtains The first P-TMSI and the first RAI of the 3G communication system obtained；

Step 904: third core network entity 603 determines after receiving first message according to the first P-TMSI and the first RAI Third core network entity 603 is the 4G communication system temporary identifier of UE601 distribution, determines 4G communication system according to the first corresponding relationship The address of the corresponding AMF604 of temporary identifier of uniting, and determine that 4G communication system temporary identifier is corresponding according to the second corresponding relationship IMSI is the IMSI of UE601；

Step 905: third core network entity 603 sends second message to AMF604 according to the address of AMF604, and second disappears Breath includes the IMSI of UE601；

Step 906:AMF604 is sent after the second message for receiving the transmission of third core network entity 603 to SMF+PGW-C The IMSI of UE601, for making SMF+PGW-C according to the context of the IMSI of UE601 inquiry UE601；

The context of the UE601 inquired is sent to AMF604 by step 907:SMF+PGW-C；

Step 908:AMF604 sends out the context of UE601 after the context for receiving the UE601 that SMF+PGW-C is sent It send to third core network entity 603；

Step 909: after third core network entity 603 receives the context for the UE601 that AMF604 is sent, by the upper of UE601 Hereafter it is sent to SGSN602；

Step 910:SGSN602 sends to HSS+UDM after receiving the context of UE601 and updates request；

Step 911:SGSN602 receives the update request-reply message that HSS+UDM is sent；

The context of UE601 is carried and is sent in RAU received message to UE601 by step 912:SGSN602；

Step 913:UE601 therefrom obtains the context of UE601 after receiving the RAU received message that SGSN602 is sent.

Using above method, the UE601 positioned at 5G communication system can be after being moved to 3G communication system, to SGSN602 Send the of the 3G communication system obtained comprising the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution The RAU of one P-TMSI and the first RAI request, SGSN602 according to the RAU request can by third core network entity 603 from The context of UE601 is obtained for the UE601 AMF604 for providing service in 5G communication system, is led to complete UE601 and be moved to 3G Location updating after letter system, wherein SGSN602 determines the address of third core network entity 603, third core according to the first RAI Heart network entity 603 determines that third core network entity 603 is the 4G communication system of UE601 distribution according to the first P-TMSI and the first RAI After temporary identifier of uniting, determine AMF604 of the UE601 before this when 5G communication system is registered according to the first corresponding relationship of storage Address.

As shown in Figure 10, if providing the first core network entity of service in the first communication system for UE601 is AMF604, the One communication system is 5G communication system, and the second core network entity is SGSN602, and the second communication system is 3G communication system, third Core network entity 603 is MME, and the first information in RAU request that UE601 is sent includes being according to third core network entity 603 First RAI of the 3G communication system for the UE601 that the 4G communication system temporary identifier of UE601 distribution obtains, the RAU that UE601 is sent The second information in request includes that AMF604 is the 5G communication system temporary identifier of UE601 distribution in 5G communication system, then UE601 the process of location updating is carried out after being moved to the second communication system from the first communication system the following steps are included:

Step 1001:UE601 sends RAU request to SGSN602, and the RAU request includes that third core network entity 603 is First RAI and AMF604 of the 3G communication system that the 4G communication system temporary identifier of UE601 distribution obtains is in 5G communication system In for UE601 distribution 5G communication system temporary identifier；

Step 1002:SGSN602 receive RAU request after, according to RAU request in third core network entity 603 be UE601 First RAI of the 3G communication system that the 4G communication system temporary identifier of distribution obtains, determines the ground of third core network entity 603 Location；

Step 1003:SGSN602 is according to the address of determining third core network entity 603 to third core network entity 603 First message is sent, the first message includes that 5G communication system of the AMF604 in 5G communication system for UE601 distribution is interim Mark；

Step 1004: third core network entity 603 determines after receiving first message according to 5G communication system temporary identifier The address of the AMF of the temporary identifier is distributed, and using the address as the AMF604's for providing service in 5G communication system for UE601 Address；

Step 1005: third core network entity 603 sends second message to AMF604 according to the address of AMF604, and second disappears Breath includes the 5G communication system temporary identifier of UE601；

Step 1006:AMF604 is sent out after the second message for receiving the transmission of third core network entity 603 to SMF+PGW-C The 5G communication system temporary identifier for sending UE601, for inquiring SMF+PGW-C according to the 5G communication system temporary identifier of UE601 The context of UE601；

The context of the UE601 inquired is sent to AMF604 by step 1007:SMF+PGW-C；

Step 1008:AMF604 sends out the context of UE601 after the context for receiving the UE601 that SMF+PGW-C is sent It send to third core network entity 603；

Step 1009: after third core network entity 603 receives the context for the UE601 that AMF604 is sent, by the upper of UE601 Hereafter it is sent to SGSN602；

Step 1010:SGSN602 sends to HSS+UDM after receiving the context of UE601 and updates request；

Step 1011:SGSN602 receives the update request-reply message that HSS+UDM is sent；

The context of UE601 is carried and is sent in RAU received message to UE601 by step 1012:SGSN602；

Step 1013:UE601 therefrom obtains the context of UE601 after receiving the RAU received message that SGSN602 is sent.

Using above method, the UE601 positioned at 5G communication system can be after being moved to 3G communication system, to SGSN602 Send the of the 3G communication system obtained comprising the 4G communication system temporary identifier that third core network entity 603 is UE601 distribution One RAI and AMF604 is the RAU request of the 5G communication system temporary identifier of UE601 distribution, SGSN602 root in 5G communication system It can be obtained according to RAU request by third core network entity 603 from 5G communication system for the UE601 AMF604 for providing service The context of UE601 is taken, to complete the location updating that UE601 is moved to after 3G communication system, wherein SGSN602 is according to One RAI determines the address of third core network entity 603, and third core network entity 603 is logical according to the 5G in the first message received Letter system temporary identifier, determine distribute the temporary identifier AMF address, using the address be used as in 5G communication system be UE601 The address of the AMF604 of service is provided.

As shown in figure 11, if providing the first core network entity of service in the first communication system for UE601 is AMF604, the One communication system is 5G communication system, and the second core network entity is SGSN602, and the second communication system is 3G communication system, third Core network entity 603 is the target third core network entity with preset address, the first letter in RAU request that UE601 is sent Breath includes the first instruction information, and the second information in RAU request that UE601 is sent includes that AMF604 is in 5G communication system UE601 distribution 5G communication system temporary identifier, UE601 send RAU request in further include third information, then UE601 from First communication system be moved to after the second communication system the process for carrying out location updating the following steps are included:

Step 1101:UE601 sends RAU request to SGSN602, and the RAU request includes the first instruction information, AMF604 It is the 5G communication system temporary identifier and third information of UE601 distribution in 5G communication system；

It, will after carrying the first instruction information in determining RAU request after step 1102:SGSN602 receives RAU request Target third core network entity with preset address is as third core network entity 603；

Step 1103:SGSN602 sends first message to third core network entity 603, and the first message includes AMF604 is the 5G communication system temporary identifier and third information of UE601 distribution in 5G communication system；

Step 1104: third core network entity 603 includes third information in first message receiving first message and determining Afterwards, the address for distributing the AMF of the temporary identifier is determined according to 5G communication system temporary identifier, and using the address as 5G communication system The address of the AMF604 of service is provided in system for UE601；

Step 1105: third core network entity 603 sends second message to AMF604 according to the address of AMF604, and second disappears Breath includes the 5G communication system temporary identifier of UE601；

Step 1106:AMF604 is sent out after the second message for receiving the transmission of third core network entity 603 to SMF+PGW-C The 5G communication system temporary identifier for sending UE601, for inquiring SMF+PGW-C according to the 5G communication system temporary identifier of UE601 The context of UE601；

The context of the UE601 inquired is sent to AMF604 by step 1107:SMF+PGW-C；

Step 1108:AMF604 sends out the context of UE601 after the context for receiving the UE601 that SMF+PGW-C is sent It send to third core network entity 603；

Step 1109: after third core network entity 603 receives the context for the UE601 that AMF604 is sent, by the upper of UE601 Hereafter it is sent to SGSN602；

Step 1110:SGSN602 sends to HSS+UDM after receiving the context of UE601 and updates request；

Step 1111:SGSN602 receives the update request-reply message that HSS+UDM is sent；

The context of UE601 is carried and is sent in RAU received message to UE601 by step 1112:SGSN602；

Step 1113:UE601 therefrom obtains the context of UE601 after receiving the RAU received message that SGSN602 is sent.

Using above method, the UE601 positioned at 5G communication system can be after being moved to 3G communication system, to SGSN602 Send comprising first instruction information, AMF604 in 5G communication system for UE601 distribution 5G communication system temporary identifier and The RAU of third information is requested, and SGSN602 can be by third core network entity 603 from 5G communication system according to RAU request In for the UE601 AMF604 for providing service obtain the context of UE601, to complete after UE601 is moved to 3G communication system Location updating, wherein SGSN602 sends the to the third core network entity 603 with preset address according to the first instruction information One message, third core network entity 603 is according to the 5G communication system temporary identifier in the first message received, and determining distribution, this faces When the address of AMF that identifies, using the address as the address for the AMF604 for providing service in 5G communication system for UE601.Wherein, The the first instruction information and third information that UE601 is carried in RAU request can be same information, and UE601 can be in RAU at this time Any one in the first instruction information and third information is carried in request, such as the first instruction information and third information are The information of the support 5G communication system SRVCC of UE601, then SGSN602 can include UE601 in determining the RAU request received Support 5G communication system SRVCC information after, carry UE601 in the first message sent to third core network entity 603 Support 5G communication system SRVCC information.

Based on a kind of identical inventive concept of the method for location updating provided by the embodiments of the present application, the embodiment of the present application A kind of user equipment (UE) of location updating is additionally provided, the implementation of the UE is referred to a kind of position provided by the embodiments of the present application The implementation of the method for update.In an implementation, a kind of user equipment (UE) of location updating provided by the embodiments of the present application can have Structure as shown in Figure 1, thus the method for realizing location updating provided by the embodiment of the present invention.

Based on a kind of identical inventive concept of the method for location updating provided by the embodiments of the present application, the embodiment of the present application A kind of the second core network entity of location updating is additionally provided, the implementation of second core network entity is referred to the application implementation A kind of implementation of the method for location updating that example provides.In an implementation, the of a kind of location updating provided by the embodiments of the present application Two core network entities can have structure as shown in Figure 2, to realize the side of location updating provided by the embodiment of the present invention Method.

Based on a kind of identical inventive concept of the method for location updating provided by the embodiments of the present application, the embodiment of the present application A kind of third core network entity of location updating is additionally provided, the implementation of the third core network entity is referred to the application implementation A kind of implementation of the method for location updating that example provides.In an implementation, the of a kind of location updating provided by the embodiments of the present application Three core network entities can have structure as shown in Figure 3, to realize the side of location updating provided by the embodiment of the present invention Method.

Based on a kind of identical inventive concept of the method for location updating provided by the embodiments of the present application, the embodiment of the present application A kind of the first core network entity of location updating is additionally provided, the implementation of first core network entity is referred to the application implementation A kind of implementation of the method for location updating that example provides.In an implementation, the of a kind of location updating provided by the embodiments of the present application One core network entity can have structure as shown in Figure 4, to realize the side of location updating provided by the embodiment of the present invention Method.

Based on a kind of identical inventive concept of the method for location updating provided by the embodiments of the present application, the embodiment of the present application A kind of system of location updating is additionally provided, the implementation of the system is referred to a kind of location updating provided by the embodiments of the present application Method implementation.

As shown in figure 12, in one embodiment, a kind of system of location updating provided by the embodiments of the present application includes:

User equipment (UE) 1201, for after being moved to the second communication system from the first communication system, to the second communication system Second core network entity of system sends position updating request, includes the first information in the position updating request, first letter Breath determines third core network entity for second core network entity, and receives the position that second core network entity is sent Update received message is set, the location updating received message is that second core network entity is obtained from the third core network entity Be sent to the UE after the context of the UE, the context of the UE is the third core network entity from the first core What network entity obtained, first core network entity is to provide the core network entity of service in the first communication system for the UE；

Second core network entity 1202, for receiving the position updating request, according to the position updating request In the first information determine the third core network entity, it includes the second information that Xiang Suoshu third core network entity, which is sent, First message, shown first message determine first core network entity for the third core network entity, receive described the The context for the UE that three core network entities are sent, and send location updating to the UE after carrying out location updating and receive Message；

The third core network entity 1203, the first message sent for receiving second core network entity, First core network entity is determined according to second information for including in the first message, and the first core net of Xiang Suoshu is real Body sends second message, and the second message obtains the context of the UE for first core network entity, described in reception The context for the UE that first core network entity is sent, and the upper and lower of the UE is sent to second core network entity Text；

First core network entity 1204, the second message sent for receiving the third core network entity, The context of the UE is obtained according to the second message, Xiang Suoshu third core network entity sends the context of the UE.

It, can be by UE1201 after being moved to the second communication system from the first communication system, to second using system above 1202 launch position of core network entity update request, the second core network entity 1202 can by third core network entity 1203 to The context for requesting UE1201 in first communication system for UE1201 the first core network entity 1204 for providing service, is obtaining After the context of UE1201, the second core network entity 1202 is able to carry out location updating, and after completing location updating to UE1201 sends location updating received message, to avoid being moved to the second communication system in the UE1201 for being located at the first communication system After system, the position of UE1201 can not be carried out for UE1201 the second core network entity 1202 for providing service in the second communication system Caused by updating the problem of the overlong time of UE1201 network interruption.

The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although some possible embodiments in the application have been described, once a person skilled in the art knows bases This creative concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as Including the embodiment of the present application and fall into all change and modification of the application range.

Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies Within, then the application is also intended to include these modifications and variations.

Claims (42)

1. a kind of method of location updating, which is characterized in that this method comprises:

After user equipment (UE) is moved to the second communication system from the first communication system, the second core net to the second communication system is real Body sends position updating request, includes the first information in the position updating request, and the first information is used for second core Heart network entity determines third core network entity；

The UE receives the location updating received message that second core network entity is sent, and the location updating received message is After second core network entity is according to location updating is carried out from the context for the UE that the third core network entity obtains It is sent to the UE, the context of the UE is that the third core network entity is obtained from the first core network entity, described First core network entity is to provide the core network entity of service in the first communication system for the UE.

2. the method as described in claim 1, which is characterized in that first core network entity and second core network entity It can not be communicated, the third core network entity is the entity that can be communicated with the third core network entity.

3. the method as described in claim 1, which is characterized in that the UE receives the position that second core network entity is sent After update received message, further includes:

The UE obtains UE context used in second communication system from the location updating received message；

If the third core network entity is the core network entity in third communication system, the UE receives second core net After the location updating received message that entity is sent, further includes:

The UE obtains the temporary identifier that the third core network entity is UE distribution from the position received message.

4. the method as described in claim 1, which is characterized in that the first information includes one of the following or a variety of groups It closes:

The third core network entity is the temporary identifier of UE distribution；

According to the first of second communication system that the temporary identifier that the third core network entity is UE distribution obtains RAI；

First instruction information, the first instruction information are real by third core net for knowing second core network entity Body obtains the context of the UE, alternatively, the first instruction information is for making second core network entity know the UE The second communication system is moved to from the first communication system.

5. the method as described in claim 1, which is characterized in that the position updating request further includes the second information, and described Two information are sent for second core network entity to the third core network entity, and real for the third core net Body determines first core network entity.

6. method as claimed in claim 5, which is characterized in that second information includes following one or more combination:

According to the first of second communication system that the temporary identifier that the third core network entity is UE distribution obtains P-TMSI and the first RAI；

First core network entity is the temporary identifier of UE distribution；

According to the second of second communication system that the temporary identifier that first core network entity is UE distribution obtains P-TMSI and second communication system obtained according to the temporary identifier that first core network entity is UE distribution 2nd RAI.

7. the method as described in claim 1, which is characterized in that the position updating request further includes third information, and described Three information are sent for second core network entity to third core network entity, and for making the third core network entity The context that the UE is obtained by the first core network entity is known, alternatively, for making the third core network entity know institute It states UE and is moved to the second communication system from the first communication system.

8. the method for claim 7, which is characterized in that the third information includes following one or more combination:

The information of the first communication system of support SRVCC of the UE；

Indicate that the UE supports the information that the second communication system is moved to from the first communication system.

9. the method as described in claim 1, which is characterized in that if the third core network entity is MME, the UE is to second Second core network entity of communication system is sent before position updating request, comprising:

The UE receives the temporary identifier that the third core network entity is UE distribution in the first communication system.

10. method as claimed in claim 9, which is characterized in that the UE receives the third core in the first communication system Before heart network entity is the temporary identifier of UE distribution, further includes:

The UE sends the registration request including the 4th information to the core network entity of the first communication system, and the 4th information is used It is that the UE distributes temporary identifier in knowing the core network entity of first communication system to the request of third core network entity；

The UE receives the temporary identifier that the third core network entity is UE distribution in the first communication system, comprising:

The third core network entity that the core network entity that the UE receives first communication system is sent is the UE points The temporary identifier matched.

11. method as claimed in claim 10, which is characterized in that the 4th information includes following one or more group It closes:

The information of the first communication system of support SRVCC of the UE；

The third core network entity is the temporary identifier of UE distribution；

Indicate that the UE supports the information that the second communication system is moved to from the first communication system.

12. method as claimed in claim 10, which is characterized in that further include the first communication of the UE in the registration request System temporary identifier.

13. the method as described in claim 1, which is characterized in that first communication system be 5G communication system, described second Communication system is 3G communication system, and first core network entity is AMF, and second core network entity is SGSN；Or

First communication system is 3G communication system, and second communication system is 5G communication system, first core net Entity is SGSN, and second core network entity is AMF.

14. the method as described in claim 1, which is characterized in that the third core network entity is MME.

15. method as claimed in claim 4, which is characterized in that the first information includes real according to the third core net Body is the first RAI of second communication system that the temporary identifier of UE distribution obtains, and second information includes basis The third core network entity be the UE distribution temporary identifier obtain second communication system the first P-TMSI and First RAI；Or

The first information includes according to the third core network entity be UE distribution temporary identifier obtain described the First RAI of two communication systems, second information include the temporary identifier that first core network entity is UE distribution； Or

The first information includes the first instruction information, and the first instruction information is for knowing second core network entity The context of the UE is obtained by third core network entity, alternatively, the first instruction information is for making second core Network entity knows that the UE is moved to the second communication system from the first communication system, and second information includes according to described first Core network entity is the 2nd P-TMSI of second communication system that the temporary identifier of UE distribution obtains and according to described First core network entity is the 2nd RAI of second communication system that the temporary identifier of UE distribution obtains.

16. a kind of method of location updating, which is characterized in that this method comprises:

Second core network entity of the second communication system receives the position updating request that user equipment (UE) is sent；

Second core network entity determines third core network entity according to the first information in the position updating request；

Second core network entity to the third core network entity send include the second information first message, described second Information determines in the first communication system to be that the UE is mentioned for the third core network entity after receiving the first message For the first core network entity of service；

Second core network entity receives the context for the UE that the third core network entity is sent, the UE or more Text is that the third core network entity is obtained from first core network entity；

Second core network entity sends location updating to the UE after carrying out location updating according to the context of the UE Received message.

17. the method described in claim 16, which is characterized in that the location updating received message includes the UE described Context used in second communication system；

If the third core network entity is the core network entity in third communication system, the location updating received message is also wrapped The temporary identifier that the third core network entity is UE distribution is included, the third communication system temporary identifier is the third Core network entity is sent to second core network entity.

18. the method described in claim 16, which is characterized in that if the first information includes the third core network entity For the temporary identifier of UE distribution, second core network entity is determined according to the first information in the position updating request Third core network entity, comprising:

Second core network entity determines the address of the third core network entity according to the temporary identifier；

If the first information includes according to the temporary identifier acquisition that the third core network entity is UE distribution First RAI of the second communication system, second core network entity are determined according to the first information in the position updating request Third core network entity, comprising:

Second core network entity determines the address of the third core network entity according to the first RAI；

If the first information includes the first instruction information, the first instruction information is for obtaining second core network entity The context that the UE is obtained by third core network entity is known, alternatively, the first instruction information is for making second core Heart network entity knows that the UE is moved to the second communication system from the first communication system, and second core network entity is according to The first information in position updating request determines third core network entity, comprising:

Second core network entity is using preset target third core network entity as the third core network entity.

19. the method described in claim 16, which is characterized in that second information includes following one or more group It closes:

According to the first of second communication system that the temporary identifier that the third core network entity is UE distribution obtains P-TMSI and the first RAI；

First core network entity is the temporary identifier of UE distribution；

According to the second of second communication system that the temporary identifier that first core network entity is UE distribution obtains P-TMSI and second communication system obtained according to the temporary identifier that first core network entity is UE distribution 2nd RAI.

20. the method described in claim 16, which is characterized in that it further include third information in the first message, described Three information are used to that the third core network entity to be made to know the context for obtaining the UE by the first core network entity, alternatively, The third information is for making the third core network entity know that the UE is moved to the second communication system from the first communication system System.

21. method as claimed in claim 20, which is characterized in that the third information be the UE carry the position more Second core network entity is sent in new request.

22. a kind of method of location updating, which is characterized in that this method comprises:

Third core network entity, which is received, provides the second core network entity transmission of service in the second communication system for the UE First message, the first message are sent after second core network entity receives the position updating request that the UE is sent 's；

The third core network entity determines in the first communication system according to the second information for including in the first message The UE provides the first core network entity of service；

The third core network entity sends second message to first core network entity, and the second message is for described the One core network entity obtains the context of the UE；

The third core network entity receives the context for the UE that first core network entity is sent；

The third core network entity sends the context of the UE to second core network entity, and the context of the UE is used Location updating is carried out in second core network entity.

23. method as claimed in claim 22, which is characterized in that the third core network entity is according in the first message The second information determine the first core network entity that service is provided in the first communication system for the UE before, further includes:

Determine to include third information in the first message, the third information is logical for knowing the third core network entity The context that the first core network entity obtains the UE is crossed, alternatively, the third information is for making the third core network entity Know that the UE is moved to the second communication system from the first communication system.

24. method as claimed in claim 22, which is characterized in that the third core network entity is in third communication system Core network entity, the third core network entity reception provide the second core net of service in the second communication system for the UE Before the first message that entity is sent, further includes:

After the third core network entity receives the third message that the first core network entity is sent, for the interim mark of UE distribution Know, the third message is sent after first core network entity determines the registration request that the UE received is sent；

The third core network entity saves the first corresponding relationship, and first corresponding relationship is that the third core network entity is The corresponding relationship of the address of the temporary identifier and first core network entity of the UE distribution；And/or

The third core network entity saves the second corresponding relationship, and second corresponding relationship is that the third core network entity is The corresponding relationship of the international mobile subscriber identity IMSI of the temporary identifier and UE of the UE distribution, the IMSI of the UE are First core network entity is sent to the third core network entity by the third message.

25. method as claimed in claim 24, which is characterized in that second information includes real according to the third core net Body is the first P-TMSI and the first RAI for second communication system that the temporary identifier of UE distribution obtains, the third Core network entity is determined according to the second information for including in the first message provides clothes in the first communication system for the UE First core network entity of business, comprising:

The third core network entity is determined as according to the first P-TMSI, the first RAI and first corresponding relationship The address of first core network entity of service is provided in the first communication system for the UE.

26. method as claimed in claim 24, which is characterized in that second information includes the UE in third communication system The first P-TMSI and the first RAI of second communication system of interior third communication system temporary identifier mapping, the third core Network entity is determined according to the second information for including in the first message provides service in the first communication system for the UE First core network entity, comprising:

The third core network entity determines institute according to the first P-TMSI, the first RAI and second corresponding relationship The IMSI of UE is stated, and manages platform HSS+UDM to server home signature user server and uniform data using the IMSI Request provides the first core network entity of service in the first communication system for the UE, and receives the HSS+UDM and send First core network entity address.

27. method as claimed in claim 22, which is characterized in that the second message includes that first core network entity is The temporary identifier of the UE distribution and/or the IMSI of the UE.

28. method as claimed in claim 22, which is characterized in that if the third core network entity is in third communication system Core network entity, the third core network entity receive the UE that first core network entity is sent context it Afterwards, further includes:

The third core network entity is that the UE distributes temporary identifier；

The third core network entity sends the temporary identifier to second core network entity.

29. a kind of method of location updating, which is characterized in that this method comprises:

That third core network entity is sent is received in first communication system for the UE the first core network entity for providing service Two message, first core network entity are that the third core network entity according in the second communication system provides clothes for the UE What the first message that the second core network entity of business is sent determined；

First core network entity obtains the context of the UE according to the second message；

First core network entity sends the context of the UE to the third core network entity, and the context of the UE is used It is sent to second core network entity in the third core network entity, and carries out position for second core network entity Set update.

30. method as claimed in claim 29, which is characterized in that first core network entity is obtained according to the second message Take the context of the UE, comprising:

First core network entity is according to the temporary identifier and/or the UE that first core network entity is UE distribution IMSI obtain the context of the UE.

31. method as claimed in claim 29, which is characterized in that first core network entity receives third core network entity Before the second message of transmission, further includes:

After first core network entity includes the 4th information in determining the registration request that the UE is sent, to third communication system The third core network entity of system sends third message, and the third message is the UE for requesting the third core network entity Distribute temporary identifier；

First core network entity receives the temporary identifier that the third core network entity is sent；

First core network entity sends the temporary identifier to the UE.

32. method as claimed in claim 31, which is characterized in that first core network entity to third communication system Three core network entities are sent before third message, further includes:

First core network entity determines the first core net of target according to determined by the temporary identifier in the registration request The address of entity is different from Self address；

First core network entity requests the context of the UE to first core network entity of target.

33. method as claimed in claim 31, which is characterized in that the third message, which further includes that the world of the UE is mobile, to be used Family identification code IMSI.

34. a kind of user equipment (UE) of location updating, which is characterized in that the UE includes transceiver, memory and processor, In:

The transceiver is communicated for the UE；

The memory, for storing application program；

The processor is executed as described in claim 1-15 is any for executing the application program stored in the memory Method.

35. a kind of the second core network entity of location updating, which is characterized in that second core network entity includes transceiver and place Manage device, in which:

The transceiver is communicated for the UE；

The memory, for storing application program；

The processor is executed as described in claim 16-21 is any for executing the application program stored in the memory Method.

36. a kind of third core network entity of location updating, which is characterized in that the third core network entity includes transceiver and place Manage device, in which:

The transceiver is communicated for the UE；

The memory, for storing application program；

The processor is executed as described in claim 22-28 is any for executing the application program stored in the memory Method.

37. a kind of the first core network entity of location updating, which is characterized in that first core network entity includes transceiver and place Manage device, in which:

The transceiver is communicated for the UE；

The memory, for storing application program；

The processor is executed as described in claim 29-33 is any for executing the application program stored in the memory Method.

38. a kind of computer readable storage medium, which is characterized in that it is stored with computer program in the readable storage medium storing program for executing, When the computer program is called by computer to be executed, so that computer executes the side as described in claim 1 to 15 is any Method.

39. a kind of computer readable storage medium, which is characterized in that it is stored with computer program in the readable storage medium storing program for executing, When the computer program is called by computer to be executed, so that computer executes the side as described in claim 16 to 21 is any Method.

40. a kind of computer readable storage medium, which is characterized in that it is stored with computer program in the readable storage medium storing program for executing, When the computer program is called by computer to be executed, so that computer executes the side as described in claim 22 to 28 is any Method.

41. a kind of computer readable storage medium, which is characterized in that it is stored with computer program in the readable storage medium storing program for executing, When the computer program is called by computer to be executed, so that computer executes the side as described in claim 29 to 33 is any Method.

42. a kind of system of location updating, which is characterized in that the system comprises:

User equipment (UE), for after being moved to the second communication system from the first communication system, to the second of the second communication system Core network entity sends position updating request, includes the first information in the position updating request, and the first information is used for institute It states the second core network entity and determines third core network entity, and receive the location updating that second core network entity is sent and connect By message, the location updating received message is that second core network entity from the third core network entity obtains the UE Context after be sent to the UE, the context of the UE is that the third core network entity is obtained from the first core network entity , first core network entity is to provide the core network entity of service in the first communication system for the UE；

Second core network entity, for receiving the position updating request, according in the position updating request The first information determines the third core network entity, and it includes the first of the second information disappearing that Xiang Suoshu third core network entity, which is sent, Breath, shown first message determine first core network entity for the third core network entity, receive the third core The context for the UE that network entity is sent, and location updating received message is sent to the UE after carrying out location updating；

The third core network entity, the first message sent for receiving second core network entity, according to described Second information for including in first message determines first core network entity, and the first core network entity of Xiang Suoshu sends the Two message, the second message obtain the context of the UE for first core network entity, receive first core The context for the UE that network entity is sent, and send to second core network entity context of the UE；

First core network entity, the second message sent for receiving the third core network entity, according to described Second message obtains the context of the UE, and Xiang Suoshu third core network entity sends the context of the UE.