CN101635966B - Method, equipment and system for handover between radio access networks - Google Patents
Method, equipment and system for handover between radio access networks Download PDFInfo
- Publication number
- CN101635966B CN101635966B CN 200810029658 CN200810029658A CN101635966B CN 101635966 B CN101635966 B CN 101635966B CN 200810029658 CN200810029658 CN 200810029658 CN 200810029658 A CN200810029658 A CN 200810029658A CN 101635966 B CN101635966 B CN 101635966B
- Authority
- CN
- China
- Prior art keywords
- network
- objective network
- service
- access
- objective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The embodiment of the invention discloses a method for handover between radio access networks, which comprises the following steps: executing a service access flow in a target network according to the service attribute of the target network, wherein the service access flow is a network access flow executed when a mobile station initially accesses the target network or when the mobile station updates information after accessing the target network; and after the service access flow is finished, performing handover on the mobile station from a current network to the target network. The embodiment of the invention also discloses the mobile station, network access equipment and a network access system. By the method, the mobile station, the network access equipment and the network access system, handover between 3GPP access networks, between non-3GPP networks and between the 3GPP network and the non-3GPP network are realized.
Description
Technical field
The present invention relates to a kind of communications applications field, relate in particular to a kind of changing method, equipment and system of wireless network access.
Background technology
mobile communication technology comprises third generation partner program (Third Generation Partnership Project, 3GPP) network and non-3GPP network, the Access Network of 3GPP network includes but not limited to GSM/EDGE Access Network (GSM EDGE Radio Access Network, GERAN), Universal Terrestrial Radio Access Network (Universal Terrestrial Radio Access Network, UTRAN), long-term evolving network (Long Term Evolution, LTE) enhancement mode Universal Terrestrial Radio Access Network (Evolved UTRAN, E-UTRAN) etc., the Access Network of non-3GPP network includes but not limited to worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, WiMAX), Wireless Fidelity (Wireless Fidelity, WiFi), bluetooth etc.
In order to realize the continuity in 3GPP network and the internetwork customer service of non-3GPP, the business that need to complete between 3GPP Access Network and non-3 GPP access network is switched.Existing travelling carriage (Mobile Station, MS) can one the moment wireless access that is operated in simultaneously 3GPP Access Network and non-3 GPP access network online, carry out simultaneously the transmitting-receiving of data, signaling, and can switch.Access technology such as the CDMA of the use that non-3 GPP access network refers to except the included access technology of 3GPP agreement, the wireless access network of WiMAX.
Fig. 1 shows the flow chart that existing 3GPP Access Network and non-3 GPP access network switch, and MS switches to non-3 GPP access network from the 3GPP Access Network, comprises the following steps:
Step S101: based on the measurement report of terminal MS, 3GPP Access Network triggering terminal MS is to for example measurement of WiMAX network of non-3 GPP access network;
Step S102:3GPP Access Network will be measured and the needed configuration parameter of measurement report links by radio resource control layer and reshuffles (RRC CONNECTION RECONFIGURATION) message and send to MS;
Step S103:MS according to the configuration parameter received to non-3 GPP access network for example the WiMAX network measure;
Step S104:MS transmission measurement report MEASUREMENT REPORT sends to 3GPP Access Network side with the measurement result of WiMAX network cell;
Step S105: based on measurement report, the 3GPP Access Network can determine whether terminal is switched to the WiMAX network;
Step S106:3GPP Access Network structure switching command HANDOVER COMMAND message triggers MS and switches to WiMAX;
Need to prove, if the switching flow that the support of 3GPP Access Network is optimized can continue step S107 to step S112, otherwise leave the 3GPP Access Network, be transformed into the WiMAX access way and carry out the switching flow that WiMAX stipulates;
Step S107:MS sends the handover request WiMAX HANDOVER REQ message of WiMAX to the residential quarter of WiMAX, and this message comprises the base station IDs of target WiMAX;
Step S108: carry out resource reservation in target WiMAX residential quarter;
Step S109:WiMAX sends the handoff response WiMAX HANDOVER RSP message of WiMAX to MS, comprises the base station IDs of target WiMAX;
Step S110:MS notice WiMAX begins to switch, and sends the switching indication WiMAX HANDOVER IND message of WiMAX to the base station of target WiMAX;
Step S111:MS leaves the 3GPP wireless access network, and is transformed into the WiMAX wireless access network;
Step S112: terminal is carried out the access process of WiMAX regulation, access WiMAX, continuation business.
Fig. 2 shows another flow chart that existing 3GPP Access Network and non-3 GPP access network switch, and MS switches to the 3GPP Access Network from non-3 GPP access network, comprises the following steps:
Step S201: initiated to switch by MS or WiMAX;
Step S202:MS sends measurement report to the 3GPP Access Network, comprises the measurement result to the 3GPP Access Network;
Step S203:3GPP Access Network is reserved resource;
Step S204:3GPP Access Network sends HANDOVER COMMAND to MS;
Step S205:MS leaves WiMAX and is transformed into the 3GPP Access Network;
Step S206:MS carries out and is linked into the 3GPP net, and sends switching confirmation HANDOVER CONFIRM message, informs network MS access.
In the process of implementing prior art, switching flow between existing 3GPP and non-3GPP agreement, all need MS to send measurement report to the 3GPP Access Network, trigger switching by MS or 3GPP Access Network, and legacy network need to upgrade to support this switching flow.
Summary of the invention
In view of the existing problem of above-mentioned prior art, the embodiment of the present invention provides a kind of changing method and equipment and system of wireless access, has realized the switching between the Access Network of travelling carriage in current network and objective network.
In order to solve the problems of the technologies described above, the embodiment of the present invention has proposed a kind of changing method of wireless access network, comprising:
Carry out the service access flow process according to the service attribute of objective network in objective network, described service access flow process is that travelling carriage initially is linked into the network insertion flow process during lastest imformation after objective network or access objective network;
After the service access flow process is completed, travelling carriage is switched to objective network by current network;
Described service attribute according to objective network is carried out the service access flow process and is comprised in objective network:
The service attribute of the objective network that the service attribute according to the mapping relations between the service attribute in current network and objective network and described current network that receiving mobile sends maps out;
Carry out the corresponding service access flow process of this service attribute according to the service attribute of the described objective network that maps out in objective network.
Accordingly, the embodiment of the present invention has also proposed a kind of travelling carriage, comprising:
Mapping block be used for according to the mapping relations between the service attribute of current network and objective network, and the service attribute of described current network maps out the service attribute of objective network;
Sending module, the service attribute that is used for objective network that described mapping block is mapped out sends to objective network;
Notification module is used for sending the resource reservation Indication message to objective network after the service attribute relation that network side sends according to sending module is carried out the service access flow process, and described resource reservation Indication message is used to indicate and completes resource reservation in objective network;
Access module is used for the resource according to the objective network reservation, completes network insertion in described objective network.
Accordingly, the embodiment of the present invention has also proposed a kind of network access equipment, comprising:
The first receiver module is used for the service attribute of the objective network that receiving mobile sends, and the service attribute of described objective network is to map out according to the service attribute mapping relations in current network and objective network;
Access module, the service attribute that is used for the objective network that maps out according to travelling carriage is carried out the service access flow process at objective network, and described service access flow process is the network insertion flow process of travelling carriage when initially being linked into lastest imformation after objective network or access objective network;
Handover module is used for after described access module finishing service access process, travelling carriage being switched to objective network by current network.
Accordingly, the embodiment of the present invention has also proposed a kind of network system, travelling carriage and network access equipment, described network access equipment is arranged in described objective network, described travelling carriage is the travelling carriage that the embodiment of the present invention limits, and described network access equipment is the network access equipment that the embodiment of the present invention limits.
Implement the embodiment of the present invention, by the service access flow process of carrying out according to the objective network service attribute, can complete fast switching in the objective network that switches, and reduce the handoff failure probability.By the realization of above-mentioned switching mode, realized between 3GPP Access Network and non-3 GPP access network, 3GPP Access Network, the switching between non-3 GPP access network.
Description of drawings
Fig. 1 is the flow chart that existing 3GPP Access Network and non-3 GPP access network switch;
Fig. 2 is that existing 3GPP Access Network and non-3 GPP access network carry out another flow chart that network switches;
Fig. 3 is the flow chart that 3GPP Access Network in the embodiment of the present invention and non-3 GPP access network switch;
Fig. 4 is another flow chart that 3GPP Access Network in the embodiment of the present invention and non-3 GPP access network switch;
Fig. 5 is the flow chart that 3GPP Access Network in the embodiment of the present invention and 3GPP Access Network switch;
Fig. 6 is the network access equipment structural representation in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of changing method and equipment and system of wireless access, realized the switching of travelling carriage between different access technologies, comprised between 3GPP Access Network and non-3 GPP access network or between different 3GPP Access Networks or the switching between different non-3 GPP access networks.Needing between Access Network can intercommunication, and for example above-mentioned Access Network is connected with same core net or is connected with core net that can intercommunication respectively.
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
The changing method that provides in the embodiment of the present invention, mainly according to third generation partner program (Third Generation Partnership Project, 3GPP) the service attribute mapping relations between the interior heterogeneous networks of service attribute mapping relations, 3GPP network or non-3GPP network in network and non-3GPP network, pre-registration mobile station information in the objective network that switches; Reserve resource according to the mobile station information of pre-registration and in the objective network that switches, complete switching in the objective network that switches.Concrete, according to the mapping relations between the service attribute of heterogeneous networks, map out the service attribute of objective network according to the service attribute of current network (source network of switching); Service attribute corresponding flow process of performance objective Network attribute in objective network according to the described objective network that maps out; Complete resource reservation according to the service attribute of the described objective network that maps out in objective network; Complete switching according to the resource reservation of completing at objective network.
Fig. 3 shows the flow chart that non-3 GPP access network in the embodiment of the present invention and 3GPP Access Network switch, by non-3 GPP access network for example the WiMAX Access Network switch to for example GERAN access network of 3GPP Access Network, concrete steps are as follows:
Step S301: initiate to switch, trigger the pre-registration process;
In this handoff procedure, switch by MS or network decision, such as judging according to wireless environment quality or business demand etc.MS supports two kinds of access technologies for example WiMAX access technology and GERAN access technology at least, and can use simultaneously these two kinds of access technologies in the transmitting-receiving of the enterprising row data of each self-corresponding Access Network, signaling.
Pre-registration makes MS in GERAN Access Network and the associated upper registration of core net (Core Network) thereof before carrying out switching, to reduce and to switch the time of implementation, reduction handoff failure probability.When MS carries out business at the WiMAX network, before switching, MS or WiMAX determine to trigger pre-registration, trigger pre-registration and occur in MS and find to detect GERAN Access Network residential quarter, and find satisfy adhere to the residential quarter of condition after.
MS triggers pre-registration after finding the GERAN residential quarter of satisfying the condition of adhering to, for example: carry out GPRS (General Packet Radio Service, GPRS) attachment flow is to the GPRS core net, for example service GPRS service support node (Serving GPRS Suport Node, SGSN), gateway (Serving GW); Or after adhering to, executing location more new technological process for example location area updating (Location Area Update) flow process, Routing Area Update (Route Area Update) flow process to core net; Or after adhering to, for example core net is arrived in wireless access capability, class mark (Classmark) information updating of MS to carry out the information updating flow process.
According to the attribute of current business, MS carries out the mapping of service attribute parameter between heterogeneous networks in this locality, is configured in all business of carrying out on current network or partial service at the service attribute parameter information of objective network.The service attribute parameter comprises service bearer attribute (as type of service, Business Entity address, QoS of survice parameter) and/or bearing link attribute (as bearing link sign, Service Access Point Indicator SAPI).In general, non-3GPP network is described the relevant information of service bearer attribute in WiMAX with Business Stream (Service Flow), comprise traffic stream identifier, connection identifier (CID (connection identifier, CID), qos parameter etc., the bearing link attribute comprises the parameters such as CID, SAPI; Use PDP Context to describe service bearer attribute and/or bearing link attribute in the 3GPP network in the GPRS/UMTS network.MS carries out the mapping of service attribute parameter, be configured in all business of carrying out on current network or partial service at the service attribute parameter information of objective network, as packet data protocol (Packet Data Protocol, PDP) context can generate PDP Context according to each WiMAX service flow (Service Flow); Or according to the Business Entity address generation PDP Context of WiMAX, the Business Entity address of WiMAX is corresponding to the pdp address of PDP Context; Or according to the type of each business, as real-time business, non-real-time service etc., create generation.
After each PDP Context generates, to comprise PDP type (PDP Type), pdp address (PDP Address), network layer Service Access Point Indicator (Network Service Access Point Identifier, NSAPI), qos parameter, stream of packets sign information such as (Packet flow identifier, PFI), and the SAPI of LLC layer corresponding to each PDP Context.
Then MS PDP related procedure for example PDP activation process or the PDP modification process of carrying out the 3GPP network, be used for activating or revising PDP Context, in order to switching arranged resources.Afterwards, the 3GPP network creation service attribute relevant information related with this MS, as create packet flow context (Packet Flow Context in base station sub-system (Base Station Subsystem, BSS), PFC), the PDP Context that is used for bearing activation or is successfully modified; Create PDP Context at SGSN, Serving GW, be used for describing the information such as service bearer attribute.Generally revise the flow process of PDP Context in the situation that existed PDP Context to use on MS, after switching to WiMAX from GERAN, once more switch back GERAN.
MS can once ask to set up or revise a plurality of PDP Contexts, the PDP Context list of the request of network based MS, judge whether to accept the foundation of MS or revise request, thereby determine all or part of PDP Context of accepting according to deterministic process, the PDP Context list of accepting is sent to MS, the reason that further can also comprise the PDP Context that refusal is accepted and refuse to accept.
The pre-registration process also may comprise authorizing procedure.After pre-registration was completed, MS can remain to adhering to of wireless core network (as the packet gateway PGW of system evolved framework (System Architecture Evolution, SAE)) always.
After completing pre-registration, MS and objective network are preserved these business attribute information.
This step has mainly been completed travelling carriage and has been gone out the service attribute of objective network according to the service attribute relationship map in current network and objective network, close to tie up to according to the service attribute of this objective network that maps out in network side and carry out the service access flow process in objective network, this service access flow process is the network insertion flow process of travelling carriage when initially being linked into lastest imformation after objective network or access objective network.
Step S302:MS notice GERAN network-triggered is switched, can use existing signaling, as cell change notice Cell Change Notification message, the identification information that carries objective network in message for example can be set to current GERAN residential quarter by Target cell, can increase cause value newly in this message, what cause value was described is: send this message for switching;
Here can first be switched by MS notice GERAN network-triggered, then by MS or network-triggered pre-registration process; Perhaps before MS notice GERAN network-triggered was switched, MS or network first triggered the pre-registration process.
Step S303:GERAN network is carried out to switch and is prepared, and reserves resource at Target cell, as Temporary Block Flow (Temporary Block Flow, TBF).In the pre-registration process, create corresponding PFC in target GERAN and be used for the business that carrying MS carries out at the WiMAX network, can carry out resource according to these PFC that has created and distribute, create TBF;
Step S304:GERAN network notice MS resource reservation is completed, and can carry out switching, and the resource of reserving is issued MS in notification message.Here can use existing signaling, as grouping switching command PSHandover Command message;
MS can also determine whether carry out switching.As according to activating successful PDP Context and the TBF resource of qos parameter value or network allocation, judge whether to satisfy business need, if satisfy business need, carry out step S305, otherwise do not carry out switching.
Judge whether to carry out and switch also and can before step S302, if do not satisfy business need, incite somebody to action not execution in step S302.Do not carry out switching and need to notify the GERAN network, for example allow it discharge the resource of having distributed or the timer that stops having started.
Step S305:MS leaves the WiMAX network, uses the GERAN access technology to be linked into the GERAN Target cell;
Step S306:MS is listening to one's own uplink state sign (Uplink State Flag, USF) send immediately Radio Link control/media access control (Radio Link Control/Medium Access Control, RLC/MAC) piece after;
After step S307:GERAN Access Network was successfully received up of MS, the notice core net was switched and is completed, and was responsible for service link in source of release WiMAX network by core net.For example send the grouping switching and complete PS Handover Complete message to SGSN, switched by SGSN notice SGW (Serving GW) and complete, finally by grouped data network gateway (PDN GateWay, PGW) source of release WiMAX resource.
In step S301, also can carry out the pre-registration process by network-triggered MS, all business that to carry out in current network as MS or the service attribute of partial service send to objective network, carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute, then carry out step S302; Perhaps objective network all business of carrying out at the WiMAX network according to current MS or the service attribute of partial service, carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute, and carry out resource reservation, after completing, resource reservation carries out step S304.
Fig. 4 shows the flow chart that 3GPP Access Network in the embodiment of the present invention and non-3 GPP access network switch, by the 3GPP Access Network for example the GERAN network switch to for example WiMAX network of non-3 GPP access network, concrete steps are as follows:
Step S401: trigger and switch, and carry out pre-registration;
The GERAN network can be controlled MS to the metering system of WiMAX network cell by the parameter on configuration MS, and receives the measurement report that MS reports, and switches the GERAN network to the switching of WiMAX network thereby trigger in due course.Switch and also can be triggered by MS, MS measures the WiMAX network on the backstage, is reduced to the threshold value of setting when GERAN Serving cell quality, and perhaps network congestion when perhaps the WiMAX network can better services MS, triggers and switches.
Autonomous or the GERAN network control MS of MS sends the measurement report that comprises the WiMAX residential quarter, triggers and switches.MS also can send signaling, and requirement switches to target WiMAX residential quarter to the 3GPP Access Network.After switching decision, MS may need to carry out pre-registration (Pre-registration), and for example MS did not carry out pre-registration (Pre-registration) flow process at target WiMAX network.
MS supports WiMAX access technology and GERAN access technology at least, can use simultaneously these two kinds of access technologies in the transmitting-receiving of the enterprising row data of each self-corresponding Access Network, signaling.
When MS carries out business in the GERAN residential quarter, pre-registration makes MS to register on the WiMAX network before switching, and reduces and switches the time of implementation, reduces the handoff failure probability.The GERAN network can begin to carry out the WiMAX pre-registration by signaling MS, measuring command EXTENDED MEASUREMENT ORDER message (CS) as existing measuring command Measurement Order message (PS), expansion, comprise target WiMAX cell list in signaling, can avoid like this MS to attempt being registered to the WiMAX network of not supporting pre-registration.
According to the attribute of current business, MS carries out the mapping of service attribute parameter between heterogeneous networks in this locality, is configured in all business of carrying out on current network or partial service at the service attribute parameter information of objective network.The service attribute parameter comprises service bearer attribute (as type of service, Business Entity address, QoS of survice parameter), bearing link attribute (as bearing link sign, Service Access Point Indicator SAPI) etc., and all business or the partial service of carrying out on current network are processed.In general, use Business Stream (Service Flow) to describe the relevant information of service bearer attribute in non-3GPP network in WiMAX, comprise traffic stream identifier, connection identifier (CID (connection identifier, CID), qos parameter etc., the bearing link attribute comprises CID, the parameters such as SAPI; Use PDP Context to describe service bearer attribute, bearing link attribute in the 3GPP network in the GPRS/UMTS network.MS carries out the mapping of service attribute parameter in this locality, be configured in all business of carrying out on current network or partial service in the business attribute information of objective network, as WiMAX service flow (Service Flow), can generate WiMAX service flow (Service Flow) according to each PDP Context; Or according to Business Entity address generation WiMAX service flow (Service Flow); Or according to the type of each business, as real-time business, non-real-time service etc., create generation.After each WiMAX service flow (Service Flow) has generated, will comprise traffic stream identifier, qos parameter etc., and the SAPI of corresponding MAC layer.
This step has mainly been completed travelling carriage and has been gone out the service attribute of objective network according to the service attribute relationship map in current network and objective network, service attribute according to objective network in network side is carried out the service access flow process in objective network, this service access flow process is the network insertion flow process during lastest imformation after travelling carriage initially is linked into objective network or is linked into objective network.
Step S402:MS initiates WiMAX Business Stream related procedure, set up Service Flow or revise existing Service Flow between MS and WiMAX base station, create corresponding CID, in order to switching arranged resources, the Service Flow that is used for bearing activation or is successfully modified.Generally revise the flow process of Service Flow in the situation that existed Service Flow to use on MS, after switching to GERAN from WiMAX, once more switch back WiMAX.
MS can send the sign of Service Flow list and target WiMAX base station to the WiMAX network, and one or more Service Flow are set up in request;
Step S403:WiMAX network returns to the result of setting up or revising Service Flow, comprises the Service Flow that accepts or refuse;
The situation of a plurality of Service Flow is set up or is revised in request for MS, the Service Flow list of the request of the network based MS of WiMAX, judge whether to accept the foundation of MS or revise request, thereby determine all or part of Service Flow that accepts according to deterministic process, the Service Flow list of accepting is sent to MS, can also comprise the Service Flow that refusal is accepted.
The pre-registration process also may comprise authorizing procedure.After pre-registration was completed, MS can remain to adhering to of wireless core network (as the PGW of SAE) always.
After completing pre-registration, MS and objective network are preserved these business attribute information.
MS and WiMAX can set up a tunnel after pre-registration, be used for transparent transmission and switch relevant signaling;
MS triggers switching and the pre-registration process can independently be carried out, MS or network-triggered pre-registration process after triggering is switched as MS, and perhaps MS triggers the front MS of switching or network-triggered pre-registration process.Can be that all business or the partial service of carrying out on current network are switched.
Step S404:MS determines whether to carry out switching;
MS determines whether to carry out switching, as judging whether to satisfy business need according to the Service Flow that returns to acceptance, if satisfy business need, carries out step S405, otherwise does not carry out switching.Do not carry out switching and need to notify the WiMAX network.
This step can be omitted, and the direct notification target network of MS is carried out and switched.
Step S405:MS notice WiMAX network is carried out and is switched.For example send handoff trigger message to objective network, the identification information that carries objective network in message is WiMAX residential quarter or base station identification information for example;
Step S406:WiMAX network is received the triggering handover information of MS, in target WiMAX residential quarter or the base station carry out resource reservation, resource reservation is carried out in the Service Flow list in the time of can be according to pre-registration, sets up corresponding CID;
Carry out after pre-registration as this step 1.
After step S407:WiMAX network was completed resource reservation, notice MS can begin to carry out and switch, and notification message comprises target WiMAX cell ID and resource;
Step S408:MS carries out access WiMAX residential quarter;
Step S409:MS is linked into the WiMAX network, and WiMAX network notification target server net switches to be completed, and is initiated the resource of source of release network by core net.For example the WiMAX network is carried out the Proxy Binding Update flow process of PGW, finally discharges former GERAN Internet resources by PGW.
In step S401～S402, also can carry out the pre-registration process by network-triggered MS, all business that to carry out in current network as MS or the service attribute of partial service send to objective network, carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute; Perhaps objective network all business of carrying out at the GERAN network according to current MS or the service attribute of partial service, carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute, and carry out resource reservation, after completing, resource reservation carries out step S407.
Above-described embodiment also can be for the handoff scenario between the interior different Access Networks of the switching between different Access Networks in the 3GPP Access Network and non-3 GPP access network, as the internetwork switching of E-UTRAN and GERAN in the 3GPP Access Network, or the switching between WiMAX and WLAN (or WiFi) in non-3 GPP access network.In Fig. 5, with E-UTRAN and the internetwork example that switches to of GERAN, concrete steps are as follows:
Step S501: initiate to switch, trigger the pre-registration process;
MS supports E-UTRAN and two kinds of access technologies of GERAN at least, and can be operated in simultaneously on these two kinds of access technologies, uses these two kinds of access technologies in the transmitting-receiving of the enterprising row data of each self-corresponding Access Network, signaling.
Switching is determined by MS or network, may need to carry out pre-registration (Pre-registration).MS is in for example enterprising industry business of E-UTRAN of source access network, and pre-registration makes MS for example to register on the GERAN network in target access network before switching, and reduces and switches the time of implementation, reduces the handoff failure probability.
According to the attribute of current business, MS carries out the mapping of service attribute parameter between heterogeneous networks in this locality, is configured in all business of carrying out on current network or partial service at the service attribute parameter information of objective network.The service attribute parameter comprises service bearer attribute (as type of service, Business Entity address, QoS of survice parameter), bearing link attribute (as bearing link sign, Service Access Point Indicator SAPI) etc.In general, the 3GPP network for example strengthens grouping system (Evolved Packet System with carrying (Bearer), EPS) relevant information of service bearer attribute is described in carrying (Bearer) in LTE, comprise bearing identification, APN (Access Point Name, APN), qos parameter etc.; Use PDP Context to describe service bearer attribute, bearing link attribute in the 3GPP network in the GPRS/UMTS network.MS carries out the mapping of service attribute parameter in this locality, all business of carrying out on the structure current network or partial service are in the business attribute information of objective network, as packet data protocol (Packet Data Protocol, PDP) context, can generate PDP Context according to each APN; Or generate PDP Context according to bearing identification; Or according to the type of each business, as real-time business, non-real-time service etc., create generation.After each PDP Context generates, to comprise PDP type (PDP Type), pdp address (PDP Address), network layer Service Access Point Indicator (Network Service Access Point Identifier, NSAPI), qos parameter, stream of packets sign information such as (Packet flow identifier, PFI), and the SAPI of LLC layer corresponding to each PDP Context.Then carry out the PDP related procedure of network, be used for activating or revising PDP Context, in order to switching arranged resources.Afterwards, network side creates corresponding packet flow context (Packet Flow Context, PFC) in base station sub-system (Base Station Subsystem, BSS).
After pre-registration, it is online that MS can be attached to same wireless core by E-UTRAN and GERAN simultaneously, as EPS.
After pre-registration is completed, network side has created the service attribute relevant information related with this MS, as at base station sub-system (Base Station Subsystem, BSS) create packet flow context (Packet Flow Context, PFC), the PDP Context that is used for bearing activation or is successfully modified; Create PDP Context at SGSN, Serving GW, be used for describing the information such as service bearer attribute.MS and objective network are preserved these business attribute information.
This step has mainly been completed travelling carriage and has been gone out the service attribute of objective network according to the service attribute relationship map in current network and objective network, service attribute according to the objective network that maps out in network side is carried out the service access flow process in objective network, this service access flow process is the network insertion flow process during lastest imformation after travelling carriage initially is linked into objective network or accesses objective network.
Step S502:MS notice GERAN network-triggered is switched, can use existing signaling, as cell change notice Cell Change Notification message, the identification information that carries objective network in message for example can be set to current GERAN residential quarter by Target cell, newly-increased cause value in this message, what described cause value was described is to send this message for switching;
Step S503:GERAN network is carried out to switch and is prepared, and reserves resource at Target cell, as Temporary Block Flow (Temporary Block Flow, TBF).In the pre-registration process, created corresponding PFC in GERAN and be used for the business that carrying MS carries out at the E-UTRAN network;
Step S504:GERAN network notice MS resource reservation is completed, and can carry out switching, and the resource of reserving is issued MS in notification message.Here can use existing signaling, as grouping switching command PSHandover Command message;
MS can also determine whether carry out switching.As according to activating successful PDP Context and the TBF resource of qos parameter value or network allocation, judge whether to satisfy business need, if satisfy business need, carry out step S505, otherwise do not carry out switching.Do not carry out switching and need to notify the GERAN network.
This step can be omitted, and directly carries out the S505 step.
Step S505:MS leaves the E-UTRAN network, uses GERAN access technology access GERAN Target cell;
Step S506:MS is listening to one's own uplink state sign (Uplink State Flag, USF) send immediately Radio Link control/media access control (Radio Link Control/Medium Access Control, RLC/MAC) piece after;
After step S507:GERAN successfully received up of MS, the notice core net was switched and is completed, and was responsible for service link in the source of release network by the core net of objective network.For example send the grouping switching and complete PS Handover Complete message to SGSN, switched by SGSN notice SGW and complete, finally discharge former E-UTRAN resource by grouped data network gateway (PDN GateWay, PGW).
In step S501, also can carry out the pre-registration process by network-triggered, all business that to carry out in current network as MS or the service attribute of partial service send to objective network, are carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute; Perhaps objective network all business of carrying out in current network according to current MS or the service attribute of partial service, carried out the mapping of service attribute parameter between heterogeneous networks by objective network, initiate related procedure and set up service attribute, and carry out resource reservation, after completing, resource reservation carries out step S504.
Above-described embodiment also is applicable to the switching between different non-3 GPP access networks, and difference is service attribute parameter mapping method and the concrete signaling difference of handoff procedure.
The embodiment of the present invention has proposed a kind of wireless network access scheme, the switching of MS occurs between heterogeneous networks, comprise between 3GPP Access Network and non-3 GPP access network, between different 3GPP Access Network and between different non-3 GPP access networks, under different scene modes, switch between both networks, satisfy roaming and the switching demand of MS.when travelling carriage switches between heterogeneous networks, travelling carriage maps out the service attribute of objective network according to service attribute mapping relations between heterogeneous networks, the business attribute information of this objective network is sent to objective network, pre-registration mobile station information in objective network, the service attribute of the objective network that is namely mapped out according to travelling carriage by objective network, carry out the service access flow process in the objective network side, this service access flow process is that travelling carriage initially is linked into the network insertion flow process during lastest imformation after objective network or access objective network, after the service access flow process is completed, travelling carriage is switched to objective network by current network.The objective network here can be third generation partner program 3GPP Access Network, and current network can be non-3 GPP access network; Perhaps, objective network can be non-3 GPP access network, and current network can be the 3GPP Access Network; Perhaps, objective network can be a kind of Access Network in the 3GPP network, and current network can be the another kind of Access Network of 3GPP network; Perhaps, objective network can be a kind of Access Network in non-3GPP network, and current network can be the another kind of Access Network in non-3GPP network.Need to prove, current network and objective network can intercommunications, communicate each other.
Complete the process of above-mentioned switching, need in objective network and current network (3GPP Access Network or non-3 GPP access network), corresponding network access equipment be set, Fig. 6 shows network access equipment in the embodiment of the present invention and the structural representation of travelling carriage, comprises travelling carriage 60 and network access equipment 61.Wherein: travelling carriage comprises: mapping block 601 and sending module 602, wherein: mapping block 601 is used for according to the mapping relations between the service attribute of current network and objective network, and the service attribute of described current network maps out the service attribute of objective network; Sending module 602 sends to objective network for the service attribute of the objective network that mapping block 601 is mapped out.Accordingly, this travelling carriage has also comprised notification module 603 and access module, wherein: notification module 603 is used for after the equipment of network side is carried out the service access flow process according to the service attribute of sending module 602 transmissions, send the resource reservation Indication message to objective network, described resource reservation Indication message is used to indicate and completes resource reservation in objective network; The resource that access module 604 is used for according to the objective network reservation is completed network insertion in described objective network.
described network access equipment 61 is arranged in 3GPP Access Network or non-3 GPP access network, be used at travelling carriage 60 when objective network carries out pre-registration, carry out the service access flow process according to the service attribute that travelling carriage sends in objective network, this service access flow process is that travelling carriage initially is linked into the network insertion flow process during lastest imformation after objective network or access objective network, and the resource reservation indication information that sends at travelling carriage 60, complete resource reservation according to the mobile station related information of pre-registration, comprise: the first receiver module 611, access module 612 and handover module 615, wherein: the first receiver module 611 is used for the service attribute according to the objective network of receiving mobile transmission, the service attribute of described objective network is to map out according to the service attribute mapping relations in current network and objective network, access module 612 is carried out the service access flow process for the service attribute of the objective network that maps out according to travelling carriage at objective network, this service access flow process is that travelling carriage initially is linked into the network insertion flow process during lastest imformation after objective network or access objective network, handover module 615 is used for after the service access flow process that access module 612 is carried out is completed, travelling carriage being switched to objective network by current network.Accordingly, this equipment also comprises the second receiver module 613 and resource reservation module 614, and wherein: the second receiver module 632 is used for the resource reservation Indication message that receiving mobile sends; Resource reservation module 613 is used for completing resource reservation according to the resource reservation indication information that receiver module 615 receives at objective network.
In sum, travelling carriage can be completed switching fast by the relevant information of pre-registration travelling carriage in the network equipment of target, and reduces the handoff failure probability.Realization by above-mentioned switching mode has realized heterogeneous networks, as between the 3GPP network, between non-3GPP network and 3GPP network and the internetwork switching of non-3GPP.
Above disclosed is only a kind of preferred embodiment in the embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (8)
1. the changing method of a wireless access network, is characterized in that, comprising:
Carry out the service access flow process according to the service attribute of objective network in objective network, described service access flow process is that travelling carriage initially is linked into the network insertion flow process during lastest imformation after objective network or access objective network;
After the service access flow process is completed, travelling carriage is switched to objective network by current network;
Described service attribute according to objective network is carried out the service access flow process and is comprised in objective network:
The service attribute of the objective network that the service attribute according to the mapping relations between the service attribute in current network and objective network and described current network that receiving mobile sends maps out;
The corresponding service access flow process of service attribute according to service attribute performance objective network in objective network of the described objective network that maps out.
2. the method for claim 1, is characterized in that, described service attribute comprises service bearer attribute and/or bearing link attribute.
3. the method for claim 1, is characterized in that, the corresponding service access process step of service attribute of described service attribute performance objective network in objective network according to the described objective network that maps out comprises:
Create the business attribute information of described travelling carriage according to the service attribute of the objective network that maps out;
Preserve described business attribute information at described travelling carriage and objective network.
4. method as described in claim 1, is characterized in that, and is described after the service access flow process is completed, and travelling carriage switched to described objective network by current network comprise:
The resource reservation Indication message that receiving mobile sends is completed resource reservation according to described resource reservation Indication message in objective network;
Carry out at described objective network according to the resource of described reservation and switch.
5. the method for claim 1, is characterized in that, described current network or objective network are GERAN or UTRAN or E-UTRAN or WiMAX or WiFi or bluetooth.
6. a travelling carriage, is characterized in that, comprising:
Mapping block be used for according to the mapping relations between the service attribute of current network and objective network, and the service attribute of described current network maps out the service attribute of objective network;
Sending module, the service attribute that is used for objective network that described mapping block is mapped out sends to objective network;
Notification module is used for sending the resource reservation Indication message to objective network after the service attribute relation that network side sends according to sending module is carried out the service access flow process, and described resource reservation Indication message is used to indicate and completes resource reservation in objective network;
Access module is used for the resource according to the objective network reservation, completes network insertion in described objective network.
7. a network access equipment, is characterized in that, comprising:
The first receiver module is used for the service attribute of the objective network that receiving mobile sends, and the service attribute of described objective network is to map out according to the service attribute mapping relations in current network and objective network;
Access module, the service attribute that is used for the objective network that maps out according to travelling carriage is carried out the service access flow process at objective network, and described service access flow process is the network insertion flow process of travelling carriage when initially being linked into lastest imformation after objective network or access objective network;
Handover module is used for after described access module finishing service access process, travelling carriage being switched to objective network by current network.
8. network access equipment as claimed in claim 7, is characterized in that, described equipment also comprises:
The second receiver module is used for the resource reservation Indication message that receiving mobile sends;
The resource reservation module is used for completing resource reservation according to the resource reservation Indication message that the second receiver module receives at objective network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810029658 CN101635966B (en) | 2008-07-22 | 2008-07-22 | Method, equipment and system for handover between radio access networks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810029658 CN101635966B (en) | 2008-07-22 | 2008-07-22 | Method, equipment and system for handover between radio access networks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101635966A CN101635966A (en) | 2010-01-27 |
| CN101635966B true CN101635966B (en) | 2013-06-05 |
Family
ID=41594969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810029658 Expired - Fee Related CN101635966B (en) | 2008-07-22 | 2008-07-22 | Method, equipment and system for handover between radio access networks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101635966B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329598B (en) * | 2012-01-19 | 2016-08-03 | 华为技术有限公司 | Packet Data Network's connection processing method and system, anchor point device and subscriber equipment |
| CN103582020B (en) | 2012-07-27 | 2017-12-19 | 电信科学技术研究院 | A kind of IP flow point stream method and devices when switching between 3GPP accesses |
| MY178196A (en) * | 2012-09-14 | 2020-10-06 | Interdigital Patent Holdings Inc | System enhancements for enabling non-3gpp offload in 3gpp |
| CN103607780B (en) * | 2013-11-19 | 2018-03-20 | 惠州Tcl移动通信有限公司 | Mobile device and its method for connecting network |
| CN105309009B (en) * | 2014-01-28 | 2020-02-14 | 华为技术有限公司 | Service transfer method and device |
| WO2015165006A1 (en) * | 2014-04-28 | 2015-11-05 | 华为技术有限公司 | Handover processing method and apparatus |
| CN109861897B (en) * | 2014-08-18 | 2023-09-01 | 华为技术有限公司 | Method, device and system for obtaining corresponding relation |
| CN111543085B (en) * | 2018-03-28 | 2022-01-04 | Oppo广东移动通信有限公司 | Switching method, user equipment, network equipment and computer storage medium |
| CN111182593B (en) * | 2019-04-04 | 2023-08-11 | 维沃移动通信有限公司 | Roaming supporting method and communication equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628476A (en) * | 2002-06-05 | 2005-06-15 | 诺基亚公司 | Method of performing handover by using different handover parameters for different traffic and user classes in communication network |
-
2008
- 2008-07-22 CN CN 200810029658 patent/CN101635966B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1628476A (en) * | 2002-06-05 | 2005-06-15 | 诺基亚公司 | Method of performing handover by using different handover parameters for different traffic and user classes in communication network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101635966A (en) | 2010-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101635966B (en) | Method, equipment and system for handover between radio access networks | |
| CN101330753B (en) | Method for establishing and erasuring resource as well as network appliance | |
| EP3606120B1 (en) | Allocating eps bearer identification | |
| CN101431797B (en) | Registration handling method, system and apparatus | |
| CN104994575B (en) | Method for updating user equipment position information | |
| CN101730142B (en) | Establishment method of multi-packet data network connection and device | |
| CN101431780B (en) | Method, equipment and system for implementing network optimization switch | |
| CN102892109B (en) | A kind of method and system for realizing IP address property notification | |
| CN101370001B (en) | Information transfer method | |
| EP2190222A1 (en) | A handing-off method and a terminal re-location method | |
| CN101127652B (en) | A method, device and system for identifying access anchor of user terminal to external network | |
| CN101282511B (en) | Bearing processing method | |
| EP2259657B1 (en) | Method for indicating the bearer management of a serving gateway | |
| CN103096294A (en) | Distribution method, device and system for controlling tunnel identifiers | |
| US20190364467A1 (en) | Method and communication entity for proving a communication connection | |
| EP3506677B1 (en) | Method and device for establishing bearer | |
| CN101299882B (en) | Method for recognizing and indicating load bearing types | |
| CN103338487A (en) | Method and equipment for intersystem reselection or switching processing | |
| CN104113918B (en) | The exchange method and device of carrying information in a kind of handoff procedure | |
| CN104053200A (en) | Method for UE to switch between UMTS and LTE system, and device | |
| CN102572783B (en) | Registration processing method, system and device | |
| CN101605364B (en) | Bearing parameter transmitting method, strategy and charging rule functional device and service gateway | |
| CN101959209B (en) | Synchronization method and system for partial failure handling | |
| CN102014370B (en) | Method and system for selecting IWP (Inter Working Proxy) | |
| CN102625411B (en) | User's method for releasing of a kind of network element overload and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171220 Address after: Mudu Wuzhong District Jin Feng Road Suzhou city Jiangsu province 215101 No. 1258 building 10 room 6019 Patentee after: SUZHOU SHIWAN YINGHE PRECISION MACHINERY CO., LTD. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20180722 |