CN102685714B - A kind of method and system for supporting double-mode and double-standby terminal while communication - Google Patents
A kind of method and system for supporting double-mode and double-standby terminal while communication Download PDFInfo
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- CN102685714B CN102685714B CN201110066911.0A CN201110066911A CN102685714B CN 102685714 B CN102685714 B CN 102685714B CN 201110066911 A CN201110066911 A CN 201110066911A CN 102685714 B CN102685714 B CN 102685714B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/005—Multiple registrations, e.g. multihoming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention discloses a kind of method and system for supporting dual-mode dual-standby UE while communication, when UE accesses from the first access system, can select to support the network element of dual-mode terminal to complete registration；And UE accesses from the second access system, network node is completed carrying synchronously for UE and bound in the second access system；UE keeps login state in two access systems simultaneously, simultaneously to receive and to send business.The inventive method and system, it can effectively support dual-mode terminal while access different networks, while receive business.The problems such as the characteristics of different access technologies can either be directed to, realizes more flexible data transfer path, realizes the reasonable of resource and makes full use of, and enough avoids single access technology overload, and transmission rate is limited.
Description
Technical field
The present invention relates to the communications field, and in particular to one kind supports the method for double-mode and double-standby terminal (UE) while communication and is
System.
Background technology
In field of mobile communication, EPS (Evolved Packet System, evolution grouping domain system) and GPRS
(General Packet Radio Service, GPRS) network progressively develops.EPS and
Gprs system and the structural representation of EPS intercommunication are as depicted in figs. 1 and 2 (non-roaming framework).EPS mainly includes E-
(Evolved Universal Terrestrial Radio AccessNetwork, the general land of evolution wirelessly connect UTRAN
Enter network) and EPC (Evolved Packet Core, the packet-based core networks of evolution) two parts.The EPC of the system can be supported
User is from GERAN (GSM EDGEradio access network, GSM EDGE wireless access networks) and UTRAN (Universal
TerrestrialRadio Access Network, universal land radio access web) access.
In EPC packet-based core networks, HSS (Home Subscriber Server, home subscriber data, services are contained
Device), MME (Mobility Management Entity, mobility management unit), S-GW (SGW, Serving Gateway,
Gateway), P-GW (PGW, PDN Gateway, grouped data network gateway), SGSN (Serving GPRS Support
Node, Serving GPRS Support Node) and PCRF (Policyand Charging Enforcement Function, strategy and meter
Take rule functional) entity, wherein：
HSS is the permanent storage place of user contracting data, positioned at the home network of user's signing；
MME is storage place of the user contracting data in current network, is responsible for the NAS layers (Non- of terminal to network
Access Stratum, Non-Access Stratum) signaling management, the tracking under user's idle pulley and paging management function and carrier pipe
Reason；
S-GW is gateway of the core net to wireless system, and user plane bearer, the terminal for being responsible for user equipment to core net are empty
Function, lawful interception and the packet routing and forwarding capability of data buffer storage, network side initiating business request under not busy pattern；
P-GW is EPS and its exterior network gateway, and IP address distribution, billing function, the packet for being responsible for terminal are wrapped
The functions such as filtering, strategy application.
SGSN is the business support point that GERAN and UTRAN users access EPC networks, and concrete function is similar with MME, is responsible for
The functions such as location updating, paging management and the bearer management of user.
GPRS gateway support node (Gateway GPRS Support Node, GGSN) supports the edge road of GPRS network
By function, i.e. GGSN is responsible for the data of GPRS network carrying out routing forwarding, and is protected by fire wall and filtering function
The integrality of GPRS network data.GGSN also has billing function.
PGW contains GGSN repertoire, you can thinks a subfunctions of the GGSN as PGW, is embedded in PGW.
Therefore SGSN can be connected directly with PGW, use Gn/Gp interfaces.
HSS/ attaching position registers (HLR), it is the primary user data storehouse for supporting calling/session.
Bimodulus or tri-mode terminal can access network by GERAN/UTRAN/EUTRAN, be needed in different network insertions
To register respectively.In existing framework, terminal accesses network first from Long Term Evolution (LTE) system access, then from GERAN/UTRAN
Flow is as shown in figure 3, the flow comprises the following steps：
Step 301 is to 302, when user starts shooting, initiates attaching process using attach request to be registered in core net.Should
Bar non-access layer information is encapsulated in the initialising subscriber message of S1 interfaces by base station (eNodeB, eNB) and brings MME.
Step 303, if not having the contextual information of user in network, or Attach Request message does not have integrality guarantor
Shield, or integrity protection failure, then the MME in core net performs the authentication process to user.
Step 304 is to 305, if not having the subscription data of user in MME, then is just sent more to home subscriber server
New position request message, including the information such as mobility management unit mark, user's mark, updating type.User data takes
User contracting data is sent to MME by business device in position response message is updated, and is write from memory including signing APN, and each APN
Recognize service quality (QoS) parameter of carrying.
Step 306 is to 307, in order to support that user is always online, MME with the qos parameter of signing default bearing in S-GW and
The default bearing of core-network side is established between P-GW.MME is sent to PGW by SGW and creates session request, is held wherein carrying acquiescence
Carry the related relevant parameter such as qos parameter, billing features.PGW authorizes to the carrying QoS of request, and by SGW to MME
Send and create conversational response.
Step 308, core-network side default bearing will activate corresponding radio bearer after establishing completion, and MME passes through initial
Context establishes request message by UE context, and the bearer QoS parameters established are sent to base station, adhere to received message
It is also encapsulated in the message and issues user.MME is carried in attachment received message and distributes to UE interim subscriber identity, and is UE
Establish the context request of carrying.
Step 309 is to 310, base station empty port load-supporting according to corresponding to being established the carrying information that core net indicates.
Step 311, empty port load-supporting is established after completion, and base station replys initial context and establishes response message to notify core
Net.
Step 312, UE returns to registration completion message by base station to MME.
Step 313, UE is moved to UTRAN (GERAN is also suitable, and the flow is by taking UTRAN as an example).UE passes through wireless network control
Device (RNC) processed sends Routing Area Update request message to SGSN, wherein carrying effective interim subscriber identity.
Step 314, SGSN finds the MME that UE registered originally according to UE interim subscriber identity, and is sent to context
Request message.
Step 315, MME verifies to UE, and verification sends UE context to SGSN after passing through.
Step 316, SGSN is received and is returned to context response to MME after UE context.
Step 317 is to 318, if UE have activated carrying, SGSN arrives GGSN by sending renewal PDP Context request
(PGW contains GGSN function) updates PDP Context.New SGSN TEID and IP is carried in renewal PDP Context request
Address, GGSN preserves these information, and returns to renewal PDP responses to new SGSN, is also updated with SGSN TEID and IP address
MME TEID and IP address.
Step 319 sends position updating request to 322, SGSN to HSS, wherein carrying new SGSN mark, HSS will be preserved
The mark.HSS inserts subscription data to SGSN.
Step 323, SGSN confirms that UE effectively, Routing Area Update received message is sent to UE in current Route Area, its
It is middle to carry the P-TMSI assigned again for UE.
Step 324, UE returns to Routing Area Update completion message to SGSN, confirms that P-TMSI is effective.UE can be by MME correlation
Message identification is invalid.
Step 325 sends canceling position request to 326, HSS to MME, and after MME returns to response to HSS, HSS is no longer preserved
MME mark.
Step 325 sends to 326, MME to SGW and deletes session request.SGW can be by related bearer context to MME
Delete.
Initial stage is introduced in LTE, due to disturbing wireless frequency spectrum, most of terminal is all foregoing multimode but singly connect
Enter terminal, this can cause UE while can only carry out business in a network or even can only be in turn resulted in a network registry
Waste of a variety of wireless access technologys (RAT) with the regional Radio Resource of covering.With the development of technology, wireless interference problems are not
It is the significant obstacle for hindering dual-mode terminal development again, how operator and equipment commercial city are supported dual-mode terminal in research while accessed
Different networks, while receive business.But not yet there is corresponding technical support at present.
The content of the invention
In view of this, it is a primary object of the present invention to provide it is a kind of support double-mode and double-standby terminal and meanwhile communication method and
System, support dual-mode terminal to access different networks simultaneously, while receive business.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method for supporting double-mode and double-standby terminal UE while communication, this method include：
UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete registration；And UE is from second
Access system accesses, and network node is completed to carry synchronous and binding for UE in the second access system；
UE keeps login state in two access systems simultaneously, to receive and send simultaneously business.
Terminal is first registered from GSM EDGE wireless access network GERAN/ universal land radio access webs UTRAN, then from
When Long Term Evolution LTE system is registered, first access system is GERAN/UTRAN, and second access system is LTE
System；
The UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete the process bag of registration
Include：
UE initiates attach request to be registered in core net；After the authentication process to user, SGSN returns to UE
Re-injection volume received message.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Fixed process includes：
UE initiates attachment/tracing section updating TAU flows, to realize the registration in EUTRAN；Mobility management entity MME
Authentication is carried out to UE and carries out the acquisition of context, also selects suitable gateway SGW/ grouped data network gateways
PGW, and trigger PGW and perform bearing activation, or the PGW based on context obtained in acquisition process address information is initiated to arrive
PGW bearing modification process, being carried in the second access system of having been established in the first access system is established or repaiied
Change, complete the bearing binding of two access systems.
After first access system completes registration, UE need to also initiate loading establishing process in the first access system,
This method further comprises：UE initiates PDP context activation flow in the first access system.
Terminal first is registered from LTE, then from GERAN/UTRAN registered when, first access system is LTE systems
System, second access system is GERAN/UTRAN；
The UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete the process bag of registration
Include：
UE attach requests are to be registered in core net；After the authentication process to user, MME initiates session establishment
Process.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Fixed process includes：
UE initiates attachment/routing area updating RAU request to realize the registration in GERAN/UTRAN；UE sends RAU please
Seek/attach request, after SGSN carries out acquisition and the authentication process of context for UE accordingly, and initiate to create session/
Change the process of carrying；Also trigger PGW and perform bearing activation, or based on context middle PGW address information is initiated to arrive PGW's
Bearing modification process, foundation or modification in the second access system are carried on to what is established in the first access system, is completed
The bearing binding of two access systems.
This method further comprises：
UE carries the instruction for whether supporting dual-mode terminal while communication function when accessing network.
This method further comprises：
In TAU requests/RAU requests/attach request that UE is sent, the finger that UE requests are registered simultaneously in two systems is carried
Show；
The instruction is realized by increasing new information element IE in the request message, or is included by expanding
The value of existing IE including registration/TAU types IE is realized.
This method further comprises：
If UE is activated and carried it is desirable that being used in two access systems, when UE accesses from the second access system,
Need to carry related carrying mark；
Mobile management unit including SGSN or MME performs bearing binding according to the carrying mark.
This method further comprises：
Mobile management unit including SGSN or MME disappears during context is obtained in context request
In breath or context response message, whether the registration, and/or carrying information before notice source SGSN are effective.
A kind of system for supporting double-mode and double-standby terminal UE while communication, the system connect including UE, the first access system, second
Enter system；Wherein,
UE, for being accessed from the first access system, selection can support the network element of dual-mode terminal to complete registration；And from
Second access system accesses, and keeps login state in two access systems simultaneously, simultaneously to receive and to send business；
Second access system, for being completed carrying synchronously for UE by its network node and being bound.
Terminal first is registered from GERAN/UTRAN, then from LTE system registered when, first access system is
GERAN/UTRAN, second access system are LTE system；
The UE accesses from the first access system, when selection can support the network element of dual-mode terminal to complete registration, is used for：
Attach request is initiated to be registered in core net；By the authentication process to user, triggering SGSN returns to UE
Re-injection volume received message.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Regularly,
The UE, for initiating registration of the attachment/TAU requests realization in EUTRAN；Trigger MME and authentication is carried out to UE
And the acquisition of context is carried out, also select suitable PGW and trigger PGW execution bearing activations, or based on context obtained
PGW address information initiates the bearing modification process to PGW in journey, and the is carried on to what is established in the first access system
Carrying or modification are established in two access systems, completes the bearing binding of two access systems.
After first access system completes registration, it is as follows that the UE is further used for the initiation in the first access system
Loading establishing process：PDP context activation flow is initiated in the first access system.
Terminal first is registered from LTE, then from GERAN/UTRAN registered when, first access system is LTE systems
System, second access system is GERAN/UTRAN；
The UE accesses from the first access system, when selection can support the network element of dual-mode terminal to complete registration, is used for：
Attach request is initiated to be registered in core net；By the authentication process to user, triggering MME initiates session
Establish process.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Regularly,
The UE, the registration in GERAN/UTRAN is realized for application attachment/RAU requests, asked by sending RAU/attached
Request triggering SGSN and acquisition and the authentication process of context are carried out for UE, and initiate to create session/modification carrying
Process；Also trigger PGW and perform bearing activation, or based on context middle PGW address information initiates the bearing modification to PGW
Process, foundation or modification in the second access system are carried on to what is established in the first access system, completes two accesses
The bearing binding of system.
UE is further used for carrying the instruction for whether supporting dual-mode terminal while communication function when accessing network.
The UE is further used for：
In TAU requests/RAU requests/attach request of transmission, the finger that UE requests are registered simultaneously in two systems is carried
Show；
The instruction is realized by increasing new IE in the request message, or includes registration/TAU by expanding
The value of existing IE including type IE is realized.
The UE is further used for：
If UE is activated and carried it is desirable that being used in two access systems, when UE accesses from the second access system,
Carry related carrying mark；The mobile management unit including SGSN or MME is triggered to be performed according to the carrying mark
Bearing binding.
The mobile management unit including SGSN or MME is further used for upper and lower when obtaining context
In literary request message or context response message, whether the registration, and/or carrying information before notice source SGSN are effective.
The inventive method and system, it can effectively support dual-mode terminal while access different networks, while receive business.
The characteristics of different access technologies can either be directed to, realizes more flexible data transfer path, realizes the reasonable and abundant of resource
Utilize, and enough avoid single access technology overload, the problems such as transmission rate is limited.
Brief description of the drawings
Fig. 1 is structural representations of the EPS under non-roaming situation；
Fig. 2 is GPRS network and the structural representation of EPS network interworkings；
Fig. 3 is the flow chart that multimode terminal accesses from two access networks respectively in the prior art；
Fig. 4 is the system diagram that the support double-mode and double-standby terminal of one embodiment of the invention communicates simultaneously；
Fig. 5 is the system diagram that the support double-mode and double-standby terminal of another embodiment of the present invention communicates simultaneously；
Fig. 6 is the flow chart that the support double-mode and double-standby terminal of one embodiment of the invention communicates simultaneously；
Fig. 7 is the flow chart that the support double-mode and double-standby terminal of another embodiment of the present invention communicates simultaneously；
Fig. 8 is the general flow chart that the support double-mode and double-standby terminal of the embodiment of the present invention communicates simultaneously.
Embodiment
In actual applications, UE can access from the first access system, and selection can support the network element of dual-mode terminal, complete
Registration；Also, UE can also access from the second access system, network node can be directed to UE and complete carrying in the second access system
Synchronous and binding；After aforesaid operations success, UE keeps login states in two access systems simultaneously, and can receive simultaneously and
Transmission business.
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
Embodiment one：
Referring to Fig. 4, Fig. 4 is one of configuration diagram of the method for the invention application.
In Fig. 4, terminal accesses network by UTRAN/GERAN/LTE, wherein, the core net net of UTRAN and GERAN accesses
Member is Gn/Gp SGSN and GGSN (PGW contains GGSN function).When terminal is from different access network accesses, if established
To same APN PDN connections, then anchor point is in PGW/GGSN.UE from two RAT be linked into same PDN connections when, use is same
The address of individual PGW/SGSN distribution.
Embodiment two：
Referring to Fig. 5, Fig. 5 is the two of the configuration diagram of the method for the invention application.
In Fig. 5, terminal accesses network by UTRAN/GERAN/LTE, wherein, the core net net of UTRAN and GERAN accesses
Member is S4SGSN, SGW and PGW.When terminal is from different access network accesses, if establishing the PDN connections to same APN,
Anchor point is in PGW/GGSN.UE from two RAT be linked into same PDN connections when, the address distributed using same PGW/SGSN.
Now, UE accesses from different RAT, can select same SGW；It is of course also possible to different SGW is selected, i.e.,
MME and SGSN select SGW respectively.
Embodiment three：
Referring to Fig. 6, Fig. 6 is to utilize method of the present invention, realizes what multimode terminal accessed from two access networks respectively
One of schematic flow sheet.In the present embodiment, it is assumed that terminal is first registered from GERAN/UTRAN, is then noted again from LTE
Volume.SGSN in the present embodiment is the SGSN for supporting Gn/Gp interfaces.The present embodiment specifically includes following steps：
Step 601 is to 602, when user starts shooting, initiates attaching process using attach request to be registered in core net.
This non-access layer information after RRC or base station sub-system (BSS) encapsulation by being sent to SGSN.
Step 603, if not having the contextual information of user in network, or Attach Request message does not have integrality guarantor
Shield, or integrity protection failure, then SGSN performs the authentication process to user.
Step 604, if there is no the subscription data of user in SGSN, then just send renewal position to home subscriber server
Request message is put, including the information such as mobility management unit mark, user's mark, updating type.User data server
Request to SGSN verifies, if by, HSS insertion subscription data is asked, and the subscription data of user is sent to SGSN,
Including signing APN, and the qos parameter that each APN is related.After SGSN returns to insertion subscription data response to HSS, HSS
Response is updated to SGSN home positions.
Step 605, SGSN returns to registration received message to UE, wherein carrying the interim subscriber identity information for UE distribution.
UE returns to registration completion message to SGSN.Wherein registering received message can also support dual-mode terminal to carry out simultaneously comprising network side
This function of communication.The instruction can be by extending IE (information element) value in existing message, or the IE that increase is new
To realize.
If UE wishes to initiate business under the RAT immediately, PDP activation flow is performed；Otherwise skip step 606 to
608, perform step 609.
Step 606, UE initiates PDP activation flow, and sending PDP context activation to SGSN by RNC/BSS asks, wherein
Carry the APN that UE requests are established, and the qos parameter of request.
Step 607, SGSN is that UE selects suitable GGSN according to APN.SGSN sends PDP context activation to GGSN please
Ask, wherein carrying the relevant parameters such as UE mark, the APN of request and QoS.GGSN carries out authorization check to qos parameter.Activate into
After work(, GGSN returns to PDP context activation response to SGSN.Wherein carry the QoS of mandate, and the parameter such as UE IP address.
Step 608, SGSN returns to PDP context activation to UE by RNC/BSS and responded, and RNC/BSS also needs to establish nothing
Line carries.Wherein PDP context activation response message can also include network side support dual-mode terminal simultaneously be communicated this
One function.The instruction can be by extending the IE values in existing message, or increase new IE is realized.
Step 609, UE is moved under EUTRAN covering, if it is desired to while accepted business from EUTRAN, then using attached
/ TAU (Tracking Area update, tracing section updating) request initiating updating of tracking area flows or register flow path, with
Carry out the registration in EUTRAN.The attachment/TAU request messages are sent to MME after being encapsulated by eNB.
Step 610, eNB TAU asked/attach request is routed to suitable MME.
If UE wishes to also need to carry the carrying mark of bound carrying with some bearing bindings before, UE.
Further, TAU requests/attach request that UE is sent can also include instruction, show that UE wishes while at two
RAT is registered.The instruction can realize by increasing new IE in the request, or by expanding existing IE value, such as
Extended registration/TAU types IE.
Step 611, MME performs the authentication process to user.
In this process, UE and network side map all without to safe context, to ensure that UE authenticates in two RAT
Generation with Key is separate.
Step 612, MME judges such as according to the registration or the instruction of TAU types carried in registration either TAU request messages
What obtains context.
If the instruction type entrained by attach request shows that UE is effective in the request that two RAT are registered, MME needs to go
SGSN obtains context.
If using TAU processes, then because TAU processes are to carry out context acquisition, therefore sentence herein without special
It is disconnected.
It can be seen that in step 612, if using attachment flow, then judged whether to obtain context according to request type；Such as
Fruit is to utilize TAU processes, then always obtains context.The process it is main be currently exchcange core net ability, avoid carrying
Mark conflict, obtains PGW addresses.
The request type is probably binary channels (dual radio), and the purpose of request is to support to establish binary channels, still
The title of request type is not limited to and this.
Step 613, MME finds the SGSN that UE registered originally according to the interim subscriber identity of the UE included in TAU requests,
And it is sent to context request message.SGSN verifies to UE, and verification sends UE context to MME after passing through.MME is received
After to UE context context response is returned to SGSN.
During being somebody's turn to do, if whether supporting dual-mode terminal without the network registered before notice MME before UE while accessing
The function of two networks, then SGSN can by context response information notify MME whether support the function.
MME need in context request message, or context response message by MME whether support the function notify to
Source SGSN.If MME is not supported, SGSN will perform the deletion of context afterwards according to the flow of prior art.Otherwise,
Registration and bearer related information before SGSN needs confirmations is still effective.Present embodiment assumes that MME supports the function.
Step 614, MME sends renewal location request message to HSS, including mobility management unit mark, user
The information such as mark, updating type.User data server is sent to user contracting data in position response message is updated
MME, including signing APN, and the qos parameter of each APN default bearings.
Step 615, whether MME has the carrying information of activation according to the context determination UE obtained from SGSN.If before
Step 606 is performed to 608, then UE has the context of activation, and MME needs also to establish these contexts in EPS.Now, MME roots
According to UE contextual informations selection identical PGW.In addition, MME selects SGW according to positional information.
If UE must have the requirement of a context according to EPS, MME is that UE is established newly without the context of activation
Context, then selection support the function PGW and SGW mode it is same as the prior art.
Step 615 is to 619, if newly-built carrying, MME is sent to PGW by SGW and creates session request, wherein carrying
The relevant parameters such as the related qos parameter of default bearing, billing features., should if MME is to establish the existing carryings of UE in EPS
MME is sent to SGW creates conversation request message, and SGW sends modification bearing request message to PGW, wherein needing to indicate that PGW is current
The RAT information of access, and the configured information by two RAT bearing bindings.Similarly, the instruction can be by extending existing IE
Or newly-increased IE is realized.
Step 621, PGW is according to the type of message received, and the configured information wherein included judges to perform bearing activation,
Either to have built up be carried on another RAT establish and complete to bind.
It can be seen that in step 621, it is dual radio or single channel (single radio) that PGW, which is required to differentiation,
Situation.
Step 622 authorizes to 623, PGW to the carrying QoS of request, and by SGW to MME send create session (or
Person changes carrying) response.
Step 624, MME returns to TAU/ attachment received messages to UE, and the message indicates whether to support dualradio, wherein
Carry the interim subscriber identity for UE distribution.UE receives backward MME and returns to TAU/ attachment completion messages.TAU/ adheres to received message
In, it can also include whether network allows/received the instruction that UE registers at two RAT.
This step can also establish radio bearer for UE.
Further, it is all effective that two RAT can also be directed to, or only effectively carrying synchronizes in some RAT.
After the process terminates, registrations of the UE in two RAT is simultaneously effective, subsequently can initiate business respectively from two RAT.
Embodiment four：
Referring to Fig. 6, Fig. 6 is to utilize method of the present invention, realizes what multimode terminal accessed from two access networks respectively
One of schematic flow sheet.In the present embodiment, it is assumed that terminal is first registered from GERAN/UTRAN, is then noted again from LTE
Volume.SGSN in the present embodiment is the SGSN for supporting S4 interfaces.
The interface being embodied in the present embodiment with the essential difference of embodiment three between SGSN and GGSN.S4SGSN needs
It is connected by SGW with PGW, therefore have the step of essential difference to be：
In step 607, SGSN needs to select SGW and PGW.
In step 608, SGSN is sent to PGW by SGW and creates session request, wherein carrying user's mark, the QoS of request
The relevant parameters such as parameter, billing features.PGW authorizes to the carrying QoS of request, and is sent by SGW to SGSN and create meeting
Words response.
Embodiment five：
Referring to Fig. 7, Fig. 7 is to utilize method of the present invention, realizes what multimode terminal accessed from two access networks respectively
One of schematic flow sheet.In the present embodiment, it is assumed that terminal is first registered from LTE, is then noted again from GERAN/UTRAN
Volume.SGSN in the present embodiment is the SGSN for supporting S4 interfaces.The present embodiment specifically includes following steps：
Step 701 is to 702, when user starts shooting, initiates attaching process using attach request to be registered in core net.Should
Bar non-access layer information is sent to MME after being encapsulated by S1.
Step 703, if not having the contextual information of user in network, or Attach Request message does not have integrality guarantor
Shield, or integrity protection failure, then MME performs the authentication process to user.
Step 704, if MME does not have UE subscription data, MME sends renewal location request message to HSS, wherein wrapping
Include the information such as mobility management unit mark, user's mark, updating type.User data server is in renewal position response message
It is middle that user contracting data is sent to MME, including signing APN, and the qos parameter of each APN default bearings.
Step 705, MME needs to select SGW and PGW according to APN and positional information.
Step 705 is sent to PGW by SGW to 708, MME and creates session request, wherein carrying default bearing correlation
The relevant parameters such as qos parameter, billing features.PGW authorizes to the carrying QoS of request, and is sent and created to MME by SGW
Conversational response.
Step 709, MME returns to registration received message to UE, wherein carrying the interim subscriber identity for UE distribution.UE is received
Backward MME returns to registration completion message.Whether can also support what UE registered in two RAT comprising network in attachment received message
Instruction.The instruction can be by extending the IE values in existing message, or increase new IE is realized.
Can also be that UE establishes radio bearer in this step, these are all prior arts known to one of skill in the art,
Do not repeat.
Step 710 is moved under GERAN/UTRAN covering to 711, UE, if it is desired to while connect from GERAN/UTRAN
Receipts business, then ask to initiate Routing Area Update flow or register flow path using attachment/RAU (Routing Area Update), to carry out
GERAN/UTRAN registration.The attachment/RAU request messages are sent to SGSN after being encapsulated by RNC/BSS.
If UE wishes to also need to carry the carrying mark of bound carrying with some bearing bindings before, UE.
Further, UE sends RAU requests/attach request, wishes while in two RAT wherein instruction UE can also be included
Registration.The instruction can be realized by increasing new IE in the request, or by expanding existing IE value, such as extend
Registration/RAU types IE.
Step 712, SGSN judges according to the registration or the instruction of RAU types carried in registration either RAU request messages
How context is obtained.
If the instruction type that attach request carries asks to register in two RAT for UE, MME is needed in SGSN acquisitions
Hereafter.
If using RAU processes, then because RAU processes are to carry out context acquisition, therefore sentence herein without special
It is disconnected.
It can be seen that in step 710, if using attachment flow, then judged whether according to request type (dual radio)
Obtain context；If using TAU processes, then context is always obtained.The main purpose of the process is exchcange core net
Ability, carrying mark conflict is avoided, obtains PGW addresses.
The request type is probably binary channels (dual radio), and the purpose of request is to support to establish binary channels, still
The title of request type is not limited to and this, and the purpose of request is to support to establish binary channels, but the title of request type is not limited to
With this.
Step 713, SGSN finds the MME that UE registered originally according to the interim subscriber identity of the UE included in RAU requests,
And it is sent to context request message.MME verifies to UE, and verification sends UE context to SGSN after passing through.SGSN
Receive and return to context response to MME after UE context.
During being somebody's turn to do, if whether supporting dual-mode terminal without the network registered before notice MME before UE while accessing
The function of two networks, then MME can by context response information notify SGSN whether support the function.
Whether SGSN needs the function will be supported to notify to source in context request message, or context response message
MME.If it does not, then MME will perform the deletion of context afterwards according to the flow of prior art.Otherwise, MME needs
Registration and bearer related information before confirmation is still effective.Present embodiment assumes that MME supports the function.
Step 714, SGSN performs the authentication process to user.In this process, UE and network side are all without to peace
Full context is mapped, to ensure that UE authenticates in two RAT and Key generation is separate.
Step 715, the carrying information included in contexts of the SGSN according to acquisition, accesses and establishes in UTRAN/GERAN
Corresponding carrying.Now, SGSN can select same SGW with MME, can also be different.If the SGW newly selected, then
Equally to consider the current positional informations of UE.
If SGSN has reselected SGW, SGSN sends to new SGW and creates session request, wherein carrying UE mark
Know, carry the qos parameter, billing features, the relevant parameter such as RAT of access of correlation.
If SGSN does not select new SGW, SGSN to send modification carrying request to SGW, wherein carrying UE mark,
Carry related qos parameter, billing features, the relevant parameter such as RAT of access.Modification carrying request needs to indicate SGW another
One RAT carrying information is also effective.
Step 716, SGW is sent to PGW changes carrying request, wherein the qos parameter of carrying UE mark, carrying correlation,
The relevant parameters such as billing features, the RAT accessed.Wherein need to indicate the RAT information that PGW is currently accessed, and two RAT are held
Carry the configured information of binding.Similarly, the instruction can be realized by extending existing IE or newly-increased IE.
Step 717, PGW is according to the type of message received, and the configured information wherein included judges to perform bearing activation,
Either to have built up be carried on another RAT establish and complete to bind.
Step 718 authorizes to 719, PGW to the carrying QoS of request, and sends modification carrying to SGSN by SGW
(establishment session) response message.
Step 720, if there is no the subscription data of user in SGSN, then just send renewal position to home subscriber server
Request message is put, including the information such as mobility management unit mark, user's mark, updating type.User data server
Request to SGSN verifies, if by, HSS insertion subscription data is asked, and the subscription data of user is sent to SGSN,
Including signing APN, and the qos parameter that each APN is related.After SGSN returns to insertion subscription data response to HSS, HSS
Response is updated to SGSN home positions.
Step 721, SGSN returns to RAU/ registration received messages to UE, wherein carrying the interim subscriber identity letter for UE distribution
Breath.
Step 722, UE returns to RAU/ registration completion messages to SGSN.In RAU/ attachment received messages, net can also be included
Whether network allows/has received the instruction that UE registers in two RAT.
Further, it is all effective that two RAT can also be directed to, or only effectively carrying synchronizes in some RAT.
Embodiment six：
Referring to Fig. 7, Fig. 7 is to utilize method of the present invention, realizes what multimode terminal accessed from two access networks respectively
One of schematic flow sheet.In the present embodiment, it is assumed that terminal is first registered from LTE, is then noted again from GERAN/UTRAN
Volume.SGSN in the present embodiment is the SGSN for supporting Gn/Gp interfaces.
The interface being embodied in the present embodiment with the essential difference of embodiment five between SGSN and PGW.Gn/Gp SGSN
There is no SGW between GGSN, therefore have the step of essential difference to be：
Step 715 to 716, SGSN to GGSN send renewal PDP Context request, wherein carry user mark, request
The relevant parameters such as qos parameter, billing features, access RAT.The request needs to indicate that carrying informations of the GGSN in another RAT also has
Effect.
Step 718 returns to renewal PDP Context response to 719, GGSN to SGSN, wherein carrying the qos parameter of mandate.
Understood with reference to various embodiments above, the present invention supports the operation thinking that double-mode and double-standby terminal communicates simultaneously to represent
Flow as shown in Figure 8, the flow comprise the following steps：
Step 810：UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete registration.
Step 820：UE accesses from the second access system, and network node completes carrying synchronously for UE in the second access system
And binding.
Step 830：UE keeps login state in two access systems simultaneously, simultaneously to receive and to send business.
From above example, present system includes UE, the first access system, the second access system；Wherein, UE,
For being accessed from the first access system, selection can support the network element of dual-mode terminal to complete registration；And from the second access system
Access, and login state is kept in two access systems simultaneously, simultaneously to receive and to send business；The second access system
System, for being completed to carry synchronous and binding for UE by its network node.
Terminal first is registered from GERAN/UTRAN, then from LTE system registered when, first access system is
GERAN/UTRAN, second access system are LTE system；The UE accesses from the first access system, and selection can be supported double
When the network element of mould terminal completes registration, it is used for：Attach request is initiated to be registered in core net；By the authentication to user
Process, triggering SGSN return to registration received message to UE.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Regularly, the UE, for initiating registration of the attachment/TAU requests realization in EUTRAN；Trigger MME and authentication is carried out simultaneously to UE
The acquisition of context is carried out, suitable PGW is also selected and triggers PGW execution bearing activations, or based on context acquisition process
Middle PGW address information initiates the bearing modification process to PGW, and second is carried on to what is established in the first access system
Carrying or modification are established in access system, completes the bearing binding of two access systems.
After first access system completes registration, it is as follows that the UE is further used for the initiation in the first access system
Loading establishing process：PDP context activation flow is initiated in the first access system.
Terminal first is registered from LTE, then from GERAN/UTRAN registered when, first access system is LTE systems
System, second access system is GERAN/UTRAN；The UE accesses from the first access system, and selection can support that bimodulus is whole
When the network element at end completes registration, it is used for：Attach request is initiated to be registered in core net；By the authentication mistake to user
Journey, triggering MME initiate session establishment process.
The UE accesses from the second access system, and network node is completed carrying synchronously for UE and tied up in the second access system
Regularly, the UE, the registration in GERAN/UTRAN is realized for application attachment/RAU requests, by sending RAU requests/attachment
Request triggering SGSN carries out acquisition and the authentication process of context for UE, and initiates to create session/modification carrying
Process；Also trigger PGW and perform bearing activation, or based on context middle PGW address information initiates the bearing modification mistake to PGW
Journey, foundation or modification in the second access system are carried on to what is established in the first access system, completes two access systems
The bearing binding of system.
UE is further used for carrying the instruction for whether supporting dual-mode terminal while communication function when accessing network.
The UE is further used for：In TAU requests/RAU requests/attach request of transmission, UE requests are carried at two
The instruction that system is registered simultaneously；The instruction is realized by increasing new IE in the request message, or passes through expansion
The value of existing IE including registration/TAU types IE is realized.
The UE is further used for：If UE activation and it is desirable that in two access systems using carrying, when UE is from the
When two access systems access, the carrying mark of correlation is carried；Trigger mobile management unit including SGSN or MME according to
The carrying mark performs bearing binding.
The mobile management unit including SGSN or MME is further used for upper and lower when obtaining context
In literary request message or context response message, whether the registration, and/or carrying information before notice source SGSN are effective.
Visible in summary, either method or system, support double-mode and double-standby terminal provided by the invention communicate simultaneously
Technology, can effectively support dual-mode terminal while access different networks, while receive business.Different connect can either be directed to
The characteristics of entering technology realizes more flexible data transfer path, realizes the reasonable of resource and makes full use of, and enough avoids single
Access technology overload, the problems such as transmission rate is limited.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (20)
- A kind of 1. method for supporting double-mode and double-standby terminal UE while communication, it is characterised in that this method includes：UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete registration；And UE accesses from second System access, network node completes that carrying is synchronous and binding for UE in the second access system, in the described first access Being carried in second access system for being established in system is established or changed, and completes the bearing binding of two access systems；UE keeps login state in two access systems simultaneously, to receive and send simultaneously business.
- 2. according to the method for claim 1, it is characterised in that terminal is first general from GSM EDGE wireless access networks GERAN/ Land radio access web UTRAN is registered, then from Long Term Evolution LTE system registered when, first access system is GERAN/UTRAN, second access system are LTE system；The UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete the process of registration and include：UE initiates attach request to be registered in core net；After the authentication process to user, SGSN is returned to UE and noted Volume received message.
- 3. according to the method for claim 2, it is characterised in that the UE accesses from the second access system, the second access system Network node completes the synchronous process with binding of carrying for UE in system includes：UE initiates attachment/tracing section updating TAU flows, to realize the registration in EUTRAN；Mobility management entity MME is to UE Carry out authentication and carry out the acquisition of context, also select suitable gateway SGW/ grouped data network gateway PGW, and Trigger PGW and perform bearing activation, or the PGW based on context obtained in acquisition process address information initiates holding to PGW Modification process is carried, foundation or modification in the second access system is carried on to what is established in the first access system, completes The bearing binding of two access systems.
- 4. according to the method for claim 2, it is characterised in that after first access system completes registration, UE is also needed Loading establishing process is initiated in the first access system, this method further comprises：UE initiates above and below PDP in the first access system Literary activation process.
- 5. according to the method for claim 1, it is characterised in that terminal is first registered from LTE, then from GERAN/UTRAN When being registered, first access system is LTE system, and second access system is GERAN/UTRAN；The UE accesses from the first access system, and selection can support the network element of dual-mode terminal to complete the process of registration and include：UE attach requests are to be registered in core net；After the authentication process to user, MME initiates session establishment mistake Journey.
- 6. according to the method for claim 5, it is characterised in that the UE accesses from the second access system, the second access system Network node completes the synchronous process with binding of carrying for UE in system includes：UE initiates attachment/routing area updating RAU request to realize the registration in GERAN/UTRAN；UE transmission RAU requests/attached Request, after SGSN carries out acquisition and the authentication process of context for UE accordingly, and establishment session/modification is initiated and holds The process of load；Also trigger PGW and perform bearing activation, or based on context middle PGW address information is initiated to PGW carrying to repair Correct one's mistakes journey, being carried in the second access system of being established in the first access system is established or changed, two is completed and connects Enter the bearing binding of system.
- 7. according to the method for claim 1, it is characterised in that this method further comprises：UE carries the instruction for whether supporting dual-mode terminal while communication function when accessing network.
- 8. the method according to claim 3 or 5, it is characterised in that this method further comprises：In TAU requests/RAU requests/attach request that UE is sent, the instruction that UE requests are registered simultaneously in two systems is carried；The instruction is realized by increasing new information element IE in the request message, or includes note by expanding The value of existing IE including volume/TAU types IE is realized.
- 9. the method according to claim 3 or 5, it is characterised in that this method further comprises：If UE activation and it is desirable that in two access systems using carrying, when UE accesses from the second access system, it is necessary to Carry related carrying mark；Mobile management unit including SGSN or MME performs bearing binding according to the carrying mark.
- 10. the method according to claim 3 or 5, it is characterised in that this method further comprises：Mobile management unit including SGSN or MME during context is obtained, in context request message or In person's context response message, whether the registration, and/or carrying information before notice source SGSN are effective.
- 11. a kind of system for supporting double-mode and double-standby terminal UE while communication, it is characterised in that the system includes UE, the first access System, the second access system；Wherein,UE, for being accessed from the first access system, selection can support the network element of dual-mode terminal to complete registration；And from second Access system accesses, and keeps login state in two access systems simultaneously, simultaneously to receive and to send business；Second access system, carrying is synchronous and binding for being completed by its network node for UE, to described the Being carried in second access system for being established in one access system is established or changed, and completes the carrying of two access systems Binding.
- 12. system according to claim 11, it is characterised in that terminal is first registered from GERAN/UTRAN, then from When LTE system is registered, first access system is GERAN/UTRAN, and second access system is LTE system；The UE accesses from the first access system, when selection can support the network element of dual-mode terminal to complete registration, is used for：Attach request is initiated to be registered in core net；By the authentication process to user, triggering SGSN is returned to UE and noted Volume received message.
- 13. system according to claim 12, it is characterised in that the UE accesses from the second access system, the second access When network node completes synchronous carrying and binding for UE in system,The UE, for initiating registration of the attachment/TAU requests realization in EUTRAN；Triggering MME carries out authentication to UE and gone forward side by side The acquisition of row context, also select suitable PGW and trigger PGW execution bearing activations, or based on context in acquisition process PGW address information initiates the bearing modification process to PGW, and being carried on of having been established in the first access system second is connect Enter to establish carrying or modification in system, complete the bearing binding of two access systems.
- 14. system according to claim 12, it is characterised in that described after first access system completes registration UE is further used for initiating following loading establishing process in the first access system：PDP Context is initiated in the first access system Activation process.
- 15. system according to claim 11, it is characterised in that terminal is first registered from LTE, then from GERAN/ When UTRAN is registered, first access system is LTE system, and second access system is GERAN/UTRAN；The UE accesses from the first access system, when selection can support the network element of dual-mode terminal to complete registration, is used for：Attach request is initiated to be registered in core net；By the authentication process to user, triggering MME initiates session establishment Process.
- 16. system according to claim 15, it is characterised in that the UE accesses from the second access system, the second access When network node completes synchronous carrying and binding for UE in system,The UE, the registration in GERAN/UTRAN is realized for application attachment/RAU requests, please by sending RAU requests/attachment Ask triggering SGSN to carry out acquisition and the authentication process of context for UE, and initiate to create the mistake of session/modification carrying Journey；Also trigger PGW and perform bearing activation, or based on context middle PGW address information initiates the bearing modification mistake to PGW Journey, foundation or modification in the second access system are carried on to what is established in the first access system, completes two access systems The bearing binding of system.
- 17. system according to claim 11, it is characterised in that whether UE is further used for carrying when accessing network Support the instruction of dual-mode terminal while communication function.
- 18. the system according to claim 13 or 15, it is characterised in that the UE is further used for：In TAU requests/RAU requests/attach request of transmission, the instruction that UE requests are registered simultaneously in two systems is carried；The instruction is realized by increasing new IE in the request message, or includes registration/TAU types by expanding The value of existing IE including IE is realized.
- 19. the system according to claim 13 or 15, it is characterised in that the UE is further used for：If UE is activated and it is desirable that in two access systems using carrying, when UE accesses from the second access system, carried Related carrying mark；Trigger the mobile management unit including SGSN or MME and carrying is performed according to the carrying mark Binding.
- 20. the system according to claim 13 or 15, it is characterised in that the mobile management including SGSN or MME Unit is further used in context request message or context response message when obtaining context, notifies source SGSN Whether registration, and/or carrying information before be effective.
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| CN201110066911.0A CN102685714B (en) | 2011-03-18 | 2011-03-18 | A kind of method and system for supporting double-mode and double-standby terminal while communication |
| PCT/CN2012/071291 WO2012126302A1 (en) | 2011-03-18 | 2012-02-17 | Method and system supporting simultaneous communication for dual-mode, dual-standby terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110066911.0A CN102685714B (en) | 2011-03-18 | 2011-03-18 | A kind of method and system for supporting double-mode and double-standby terminal while communication |
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| WO2019214105A1 (en) * | 2018-05-10 | 2019-11-14 | Oppo广东移动通信有限公司 | Method and apparatus for binding data streams, and computer storage medium |
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| MX2015009366A (en) * | 2013-01-31 | 2015-09-23 | Ericsson Telefon Ab L M | Tdm-based resource partition between two radio base stations. |
| CN105657639B (en) * | 2015-12-25 | 2019-06-28 | 泰凌微电子（上海）有限公司 | Dual-mode equipment and its method realized while communicated |
| KR102486257B1 (en) * | 2017-03-25 | 2023-01-06 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Communication method for realising dual sim dual active, and terminal |
| CN110557827B (en) * | 2018-05-30 | 2022-10-28 | 展讯通信（上海）有限公司 | Registration method and base station of dual networks |
| CN111448816A (en) | 2018-11-16 | 2020-07-24 | Oppo广东移动通信有限公司 | Network access method and equipment |
| CN111200625B (en) * | 2018-11-19 | 2021-07-09 | 华为技术有限公司 | Method, equipment and system for controlling service quality |
| EP3883298B1 (en) | 2019-09-23 | 2023-11-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for system interoperation |
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