WO2010111814A1 - 用于以最小包损失移动wcdma移动台的装置和方法 - Google Patents
用于以最小包损失移动wcdma移动台的装置和方法 Download PDFInfo
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- WO2010111814A1 WO2010111814A1 PCT/CN2009/001075 CN2009001075W WO2010111814A1 WO 2010111814 A1 WO2010111814 A1 WO 2010111814A1 CN 2009001075 W CN2009001075 W CN 2009001075W WO 2010111814 A1 WO2010111814 A1 WO 2010111814A1
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- 238000004891 communication Methods 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 33
- 238000012986 modification Methods 0.000 claims description 9
- 230000004048 modification Effects 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 4
- 230000004044 response Effects 0.000 description 18
- 238000012790 confirmation Methods 0.000 description 7
- 230000011664 signaling Effects 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 238000012546 transfer Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
Definitions
- the present invention relates to a scheme for moving a mobile station (MS) with minimal packet loss in a wireless communication network and in particular to a scheme for processing attachments in a network.
- the core network entity may be a member of the core network entity pool, and for WCDMA or LTE is a Mobile Association Device (MMD), such as a GPRS GPRS Support Node (SGSN) or a Mobility Management Entity (MME).
- MMD Mobile Association Device
- SGSN GPRS GPRS Support Node
- MME Mobility Management Entity
- RAUs Routing Area Updates
- the standard protocol enables the execution of Routing Area Updates (RAUs) and the users who are attached to be able to move between different SGSNs, as well as the methods required for the remaining users who do not perform these operations. These remaining users are stationary and cannot perform RAU and are simultaneously running payloads (payloads) rather than performing periodic RAU procedures. Moving them may be through a removal process that requires reattachment.
- 3GPP TS 23.236 and 3GPP 23.401 describe the redistribution of UEs in the SGSN pool and the MME pool, respectively. This redistribution to the UE is initiated by the O&M command in the CN node and the CN node needs to be unloaded.
- the RAU or attached UE is moved to other SGSNs in the pool.
- the SGSN receives the routing area update or attach request, it returns a new PTMSI with mill-NRI and non-broadcast RAI in the accept message.
- the new routing area update is triggered by setting the periodic routing area update timer to a sufficiently low value (recommended value of 4 seconds) in the accept message. Due to the advent of null-NRI, the UE will send a new routing area update later. The RAN node then routes it to the new SGSN.
- the SGSN In the second phase, the SGSN requests all UEs attempting to establish a PDP context to unload and reattach. When they reattach, the SGSN will move them as described in the first stage of the above.
- the third phase involves scanning the remaining UEs and moving them to other SGSNs.
- these UEs are requested to be unloaded and reattached, which will cause them to be moved.
- the UEs moving out of one SGSN are connected to the pool's BSC and the O&M commands in the RNC stop registering again to the same SGSN.
- the XJE moving into the pool area may also be stopped from registering in the uninstalled SGSN in the same manner.
- the network operator wishes to remove the load from an SGSN node in an orderly manner (for example, performing maintenance of the subscription or redistributing the execution load to avoid overloading) and
- the impact of additional load on the peer user and/or other entities is as small as possible.
- the redistribution process does not require any new functionality in the terminal, ie all terminals can be moved.
- the MS when the MS (or UE) is in the PMM connection (ie, active), it will not be able to perform periodic RAIJ or attach.
- the scheme suggested in 23.236 if the operator wants to move the MS with the PMP connected to the PMM, the current PS service will be interrupted. The user must rebuild the service in the mobile target SGSN.
- the payload interrupt can last for many seconds during a move operation between pool members. This is valid for load balancing of both the SGSN pool and the MME pool.
- the standard method of load rebalance between MMEs is based on the allocation performed by the eNodeB. This means that if there is no additional information the eNodeB may be based solely on The capacity weight of the MME performs random allocation of the UE and cannot take into account the behavior of the end user and its impact on the MME load.
- the purpose of the mobile active user is to enable seamlessly moving active users (ie, users running payloads) from the source CN node (eg, MMD) to the target CN node (eg, MMD) in the pool, ie they should be minimal
- the packet loss is moved.
- the method according to the invention can generally be divided into two steps.
- the MS is still connected to the source CN node and the payload is running, the MS is ready to point to the routing information of the target CN node.
- a second step the connection between the source CN node and the RAN node is released, the MS ID, context data and mobile information are transmitted to the target CN node.
- a new connection is then established between the target CN node and the RAN node. Complete this step in a synchronous and fast manner to minimize packet loss.
- the routing information sent to the MS is used, so it points to the new CN node.
- MME E-UTRAN
- SGSN UTRAN
- 3GDT UTRAN only
- the object provided by the present invention has several aspects.
- the first is a source accessory node in a wireless communication network, which includes:
- the processing unit is configured to execute a set of instructions stored in the memory for receiving information related to the MS, a processing attachment status of the MS, and further configured to: connect the active MS from the source to the node by the following steps Move to the target attached node:
- the node may be a serving GPRS support node or a mobility management entity.
- the node may be further configured to receive a delete location from the subscribing node.
- the node may be further configured to exchange bearer modification messages with the gateway.
- a second aspect provided by the present invention is a source attachment node in a wireless communication network, including:
- processing unit is configured to execute a set of instructions stored in the memory for receiving information related to the MS, a processing attachment status of the MS, and further configured to: connect the active MS from the source to the node by the following steps Move to the target attached node:
- the node may be a serving GPRS support node or a mobility management entity.
- the node may be further configured to receive a delete location message from the subscribing node.
- a third aspect of the present invention provides a source attachment node in a wireless communication network, including:
- processing unit is configured to execute a set of instructions stored in the memory for receiving information related to the MS, a processing attachment status of the MS, and further configured to receive the attachment of the MS from the source attaching node by the following steps :
- the node may be further configured to receive and buffer downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- the node may be further configured to drop downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- the node may be a serving GPRS support node or a mobility management entity.
- the node may be further configured to send an update location message to a subscriber subscriber.
- a fourth aspect of the present invention provides a source attachment node in a wireless communication network, including:
- processing unit is configured to execute a set of instructions stored in the memory for receiving information related to the MS, a processing attachment status of the MS, and further configured to receive the attachment of the MS from the source attaching node by the following steps :
- the node may be further configured to receive and buffer downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- the node may be further configured to drop downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- the node can be a serving GPRS support node or a mobility management entity.
- the node may be further configured to send an update location message to a subscriber subscriber.
- a fifth aspect provided by the present invention is a method for processing an MS attachment state in a wireless communication network, comprising the steps of:
- the target node requests communication data of the MS from the source node; and reestablishes a bearer connection.
- the method can further include the step of buffering downlink payload communication data.
- the method can further include the step of transmitting subscription data to a subscriber.
- the method can further include the step of discarding downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- a sixth aspect provided by the present invention is a method for processing an MS attachment state in a wireless communication network, comprising the steps of:
- the method can further include the step of buffering downlink payload communication data.
- the method can further include the step of transmitting subscription data to a subscriber.
- the method may further comprise the step of discarding downlink payload data to the MS until a reestablishment of the bearer connection is performed.
- the value of the SGSN pool feature is increased so that all PDP contexts can be minimized
- Figure 1 schematically shows a network in accordance with the present invention
- Figure 2 shows schematically a device according to the invention
- Figure 3 schematically shows a specific example of a method according to the invention in a more detailed manner
- FIG. 4 illustrates a process of moving an MS from one SGSN to another SGSN in accordance with one embodiment of the present invention
- Figure 5 illustrates a process of moving an MS from one MME to another MME in accordance with one embodiment of the present invention
- Figure 6 shows schematically in a more detailed manner a further specific example of the method according to the invention.
- FIG. 7 schematically shows a signaling method according to another embodiment of the present invention
- Fig. 8 schematically shows a signaling method according to still another embodiment of the present invention.
- reference numeral 10 generally indicates a network in accordance with the present invention.
- the network includes a basic core network (CN) portion 6, which includes means for operating a suitable communication protocol.
- the infrastructure includes mobile management devices/nodes 4 and 5 in communication with the radio access network device 2.
- the mobility management device/node (MMD) may be a Serving GPRS Support Node (SGSN) or a Mobility Management Entity (MME).
- the radio access network device 2 may be, for example, a radio network controller (RNC) or an eNodeB.
- RNC radio network controller
- the mobility management device is connected to a network gateway 7, such as a Gateway GPRS Serving Node (GGSN) or a Serving Gateway (SGW).
- MMD 4, 5 communicates with a user database (eg, a home location register (HLR) or a primary user server (HSS)).
- HLR home location register
- HSS primary user server
- the base mobility management device 4, 5 provides MS 1 with mobility management between different MMDs in the core network.
- the MS 1 is attached to the network through the wireless access device 2 and thus communicates with the mobility management device 4 or 5.
- the present invention provides a method of moving the context of an MS from one MMD to another. This will be shown in two scenarios: Communication networks based on WCDMA and LTE.
- the device shows an apparatus 200 that executes, in a processing unit 201, a set of instructions stored in a memory 202 in a program code for performing the method steps in accordance with the present invention.
- the device also includes a communication interface 204 and an optional user interface 203.
- the processing unit is configured to execute the set of instructions and use the communication interface for communicating control traffic and/or data traffic over the network 6 (shown in Figure 1).
- the processing unit can include any suitable type of processing unit, such as a microprocessor, field programmable gate array (FPGA), application specific integrated circuit (ASIC), or similar computing/processing unit.
- the memory unit can be any type of suitable volatile and non-volatile memory, such as RAM, DRAM, flash memory, hard disk, CD ROM, DVD, and the like.
- the communication interface may comprise any suitable type of interface, e.g., Ethernet, ATM, ADSL, Token Ring, x25 or similar type as understood by those skilled in the art.
- the user interface can be provided for local control of the device; however, the device can also be remotely controlled using the communication interface.
- the assignment of program instructions can be installed into the device using a communication interface or using a non-volatile memory unit connected to the device.
- the method according to the invention can generally be divided into two steps.
- the first step when the MS is still connected to the source CN node and the payload is running, The MS is ready to point to the routing information of the target CN node.
- the connection between the source CN node and the RAN node is released, and the MS ID, context data, and mobile information are transmitted to the target CN node.
- a new connection is then established between the target CN node and the RAN node. Complete this step in a synchronous and fast manner to minimize packet loss.
- the routing information sent to the MS is used, so it points to the new CN node.
- MME E-UTRAN
- SGSN UTRAN
- 3GDT UTRAN only
- FIG. 3 schematically shows a specific example of a method according to the invention in a more detailed manner:
- the source MMD transports the reassignment message to the MS.
- the target MMD initiates a context request (Context Request) to the source MMD and establishes a new connection between the target MMD and the MS, the target MMD taking over the control plane.
- Context Request a context request
- moving an active user from a source SGSN to a target SGSN includes the following steps:
- Step 401 For the MS in the PMM connection, the source SGSN initiates a PTMSI reallocation process for the MS.
- the NRI in the PTMSI is set to point to the target SGSN to which the MS should be moved. PTMSI redistribution should be avoided with the target SGSN.
- the PTMSI in the repeat repeats and contains the information of the source SGSN, which depends on the network topology.
- Step 402 Then, the source SGSN releases the hi connection to the MS to put the MS in the PMM idle state.
- Step 403 If the MS has any uplink, it will initiate a monthly request to the RNC.
- the source SGSN can also page the MS or submit a page request to the MS.
- Step 404 After receiving the paging request, the MS may also initiate a service request to the RNC.
- Step 405 After receiving the service request from the MS, the RNC routes it to the target SGSN because the NRI in the PTMSI points to the target SGSN.
- Step 406 After receiving the service request from the MS, the target SGSN can identify that the mobile is for the MS, that is, it is a mobile of the MS, and initiates an SGSN Context Request to the source SGSN.
- Step 407 In response, the source SGSN returns the SGSN Context Response (MM/PDP Context). Note that the decomposition of the source SGSN is strongly related to the PTMSI redistribution. This also depends on the network topology. Note that the entire process will follow the internal SGSN RAU procedure without the need for RAU acceptance.
- MM/PDP Context SGSN Context Response
- Step 408 After receiving the SGSN context response, the target SGSN will use the security function. That is, the secure mode process is implemented between the MS and the target SGSN via the RNC.
- Step 409 The target SGSN returns an SGSN context confirmation to the source SGSN.
- Step 411 Then, the target SGSN sends an update location request to the HLR.
- Step 413 Generate an insertion of user data between the target SGSN and the HLR.
- Step 414 The HLR then sends an update location confirmation to the target SGSN.
- Step 415 The target SGSN initiates a PTMSI reallocation process for the MS.
- the source SGSN may be processed in the following manner. PTMSI redistribution:
- New PTMSI Fl (target NRI) with broadcast RAI, where the target NRI is used to identify the target SGSN, and the target SGSN uses the broadcast RAI to look up the source SGSN.
- New PTMSI F2 (target NRI, source NRI, mobile information) with current RAI, where the target NRI is used to identify the target SGSN, the target SGSN uses the source NRI to find the source SGSN, and the target SGSN uses the mobile information to identify the current
- the process is a move.
- the basic idea of the above example is to move the MS with PDP/payload to another SGSN in the pool without unloading them and all PDP contexts will be reserved on the target SGSN to minimize packet loss.
- Step 500 The source MME decides to move the MS
- Step 501 The source MME initiates a GUTI re-allocation process for the MS, where the GUTI should include the target MME identification source MME and the information of the mobile process. Note that if the MS is not in the ECM connection state, the MME will page the MS before this step.
- Step 502 The MS re-allocates the message response source MME with the GUTI.
- Step 503 The source MME performs a signaling connection.
- Step 504 The source MME pages the MS by sending a paging request to the MS.
- Step 505 The MS accepts the paging request and initiates a service request procedure. Due to the target MME ID in GUTI, the message is routed by the eNodeB to the target MME.
- Step 506 When receiving the service request, the target MME identifies the mobile process and the source MME ID according to the GUIT and sends a context request to the source MME to acquire the context of the MS.
- Step 507 In response, the source MME returns a context response.
- Step 508 Then, the target MME initiates a security function. That is, the target MME interacts with the MS through the eNodeB to perform a security procedure. Step 509: Then, the target MME sends a context confirmation to the source MME. Step 510: The target MME initiates a context establishment process to establish a bearer.
- Step 511 Then, the radio bearer is implemented between the MS and the eNodeB.
- Step 512 After the radio setup is completed, the eNodeB sends a context setup complete message to the target MME.
- Step 513 The target MME initiates an update bearer process to the SGW.
- Step 514 Then, the update bearer is implemented by the SGW and the PGW.
- Step 515 The SGW sends an update bearer response to the target MME.
- Step 516 The target MME initiates an update location procedure to the HSS.
- Step 517 In response, the HSS initiates a delete location to the source MME.
- Step 518 After completing the deletion location, the HSS sends an update location confirmation to the target MME.
- Step 519 The real GUTI of the target MME is assigned to the MS.
- Step 520 In response, the MS returns a GUTI complete message to the target MME.
- Figure 6 shows in a more detailed way a further specific example of the method according to the invention:
- the source mobility management device transmits user equipment UE communication data, e.g., MM and PDP context data, including to the target MMD security context data and receiving temporary UE identification data from the target MME.
- UE communication data e.g., MM and PDP context data
- the source MMD transmits data related to the target MMD to the UE.
- release information is sent to the target MMD and a new connection is established between the target MMD and the UE, wherein the target MMD gains control of the control plane.
- Update the location information in the subscription node such as HLR or HSS.
- moving active users from the source SGSN Moving to the target SGSN includes the following steps:
- the target SGSN takes over control plane signaling.
- the movement of the MM and PDP contexts between the two SGSNs can be achieved by using the SGSN context procedure (in the case of ISRAU) or by using the forwarding relocation procedure (in the case of PS handover and SRSN relocation).
- the target SGSN context procedure Since the SGSN context procedure is initiated by the target SGSN, it needs the target SGSN to be aware of the need to move the MS context. This is also the case when using pRAU to move the MS, but there will be no pRAU for the MS running the payload and the process will be excluded.
- a forwarding relocation procedure initiated by the source SGSN is used.
- PTMSI must be reassigned when entering the new SGSN. Typically, this is done by attach or RAU accept with a subsequent attach or RAU completion message. In the case of mobile active users, neither of these methods can be used. Instead, a separate PTMSI redistribution process in the 3GPP standard.
- the target SGSN takes over control plane signaling by exchanging the hi connection from the RNC to the target SGSN and from the source SGSN to the target SGSN.
- the process includes releasing the lu connection in the source SGSN and the RRC connection in the first step.
- the target SGSN must therefore page the MS (using the new PTMSI) in the second step to establish a lu connection from the target SGSN and establish a new RRC connection.
- the security context is re-established in the RNC using the secure mode process.
- the RNC will be given the IP address and TEID of the GGSN and the process is assigned in the RAB. After the bundle, the GGSN will be updated according to the user plane using the RNC's IP address and TEID. Active user move process
- IMSI TEID Control Plane
- Target The SGSN verifies the request based on IMSI analysis, roaming restrictions, encryption algorithms used, and so on. If the new MS cannot be accepted then the request is rejected, otherwise the MS is assigned a new PTMSI and sends a Forward Relocation Response to the source SGSN (eg, with control parameter reason, TEID control plane, SGSN control plane organization, Includes private extensions for the new PTMSI).
- a Forward Relocation Response eg, with control parameter reason, TEID control plane, SGSN control plane organization, Includes private extensions for the new PTMSI).
- the target SGSN In order to exchange GGSN DL and UL paths from the source SGSN to the target SGSN, the target SGSN sends an Update PDP Context Request message to the GGSN for each PDP context.
- the GGSN updates the PDP Context Domain and returns an Update PDP Context Response message to the target SGSN.
- the DL packet from the GGSN will be directly transmitted to the target SGSN, and the UL packet will still be sent from the source SGSN to the GGSN.
- the DL packet can be discarded or buffered until a new lu connection and RAB are established between the MS and the target SGSN.
- Target The SGSN informs the source SGSN by sending a Forward Relocation Complete message: The exchange of the SGSN-GGSN payload has been completed.
- the source SGSN initiates the reallocation of the PTMSI using the new PTMSI allocated in the target SGSN and received at step 2.
- the source SGSN sends a PTMSI re-segment to the MS. With the command (new PTMSI) message.
- the MS reassigns the message response source SGSN with PTMSI.
- the MS now has a PTMSI that includes an NRI, where the NRI points to the target SGSN. But as long as the current lu connection exists, the signaling will still be sent to the source SGSN.
- the source SGSN will perform the lu release process (lu release command and lu release completion response). This process also means the release of the RRC connection.
- the result of lu release is: All possible RABs will also be released.
- the source SGSN sends a Forward Relocation Complete Acknowledgement message to the target SGSN.
- Target The SGSN notifies the HLR SGSN of the change by sending an Update Location message to the HLR.
- the MS If the MS wants to send uplink data, it will send a service request (data) to re-establish the lu connection and RAB.
- step 11 if the MS does not send a service request (data), the target SGSN will call the MS using a paging request message containing the new PTMSI.
- the MS responds directly to the target SGSN with a service request (paging response).
- the target SGSN initiates a security mode process.
- the HLR acknowledges the update location by sending an update location confirmation message to the target SGSN.
- Target The SGSN will establish an RAB to the RNC by using the RAB allocation procedure to be able to send and receive to and from the MS payload.
- the RNC will be given the IP address and TEID of the GGSN.
- the GGSN needs to be updated based on the user plane using the RNC's IP address and TEID. This is done by using the Update PDP Context procedure. If the MS to be moved is not in a connected state, some processes will be omitted. In addition, the MS needs to be paged and the lu connection must be established between performing the PTMSI redistribution process. After the PTMSI redistribution process, the lu connection will be released. According to the above example, in general, moving in the SGSN pool in the case of WCDMA can be described as follows:
- the first step involves the internal SGSN SRNS process, which forwards the relocation request and response message. These messages are used to exchange MS context data and new PTMSI (assigned in the new SGSN) between the old and new SGSNs.
- the old SGSN redistributes the PTMSI with a new PTMSI pointing to the new SGSN.
- the payload path to and from the GGSN is switched from the old SGSN to the new SGSN (in the case of 3GDT, from the RNC to the new SGSN).
- the downlink payload packet is then buffered or discarded in the new SGSN.
- the old SGSN After receiving the Forward Relocation Complete message (i.e., the valid path transition to the GGSN is completed) and ending the PTMSI reallocation, the old SGSN releases i and notifies the new SGSN.
- the new SGSN immediately pages the MS (unless the MS initiates a service request) and re-establishes the lu and RAB. Then the payload between the GGSN and the MS is recovered by the new SGSN (in the case of 3GDT, the 3GDT path between the RNC and the GGSN is re-established to the GGSN update).
- the update location to the HLR is performed immediately after the new SGSN learns that the lu connection has been released in the old SGSN by forwarding the relocation complete confirmation message. This has already been discussed in Figure 7.
- the mobility procedure in WCDMA is discussed in Figure 7, but the procedure is slightly different in the case of the MME, which will be discussed below with reference to Figure 8.
- the first step after the decision to move includes the internal MME S1 based handover procedure, i.e. forwarding the relocation request and response message. These are used to exchange UE context data between the old and new MMEs and the new GUTI (assigned in the new MME).
- the old MME uses the GUTI redistribution with the new GUTI
- the process where the new GUTI points to the new MME.
- SGW Serving Gateway
- a release access bearer procedure from the old MME to the SGW is performed. This releases all bearers and the S1 connection (UE Context Release Command) between the old MME and the eNodeB is released by the S1 release procedure (UE Context Release Complete) and the RRC Connection Release between the eNodeB and the UE.
- the payload packet can be cached in the SGW or discarded.
- the new MME is notified by transmitting a retransmission re-establishment notification from the old MME.
- the message includes the NAS uplink and downlink to enable seamless NAS encryption.
- the new MME then immediately pages the UE (unless the UE initiates a service request) and re-establishes the S1 connection and the SAE bearer ( ⁇ -RAB":).
- the MME re-establishes the bearer at the SGW by performing a modify bearer request. Then, between the SGW and the MS The payload can be recovered by the eNodeB.
- the update location of the HSS is performed immediately after the new MME S1 connection is released by the forwarding in the old MME by the forwarding relocation completion notification. It should be noted that the modification bearer request/response is performed for each PDN connection and each PDN connections (cached or discarded) are released at this time.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980158572XA CN102365886A (zh) | 2009-03-31 | 2009-09-29 | 用于以最小包损失移动wcdma移动台的装置和方法 |
JP2012502416A JP2012522437A (ja) | 2009-03-31 | 2009-09-29 | 最小限のパケット損失でwcdma移動局を移動させる装置及び方法 |
US13/262,258 US8929895B2 (en) | 2009-03-31 | 2009-09-29 | Apparatus and method for moving WCDMA mobile station in the manner of the least packet loss |
EP09842471A EP2416606A4 (en) | 2009-03-31 | 2009-09-29 | DEVICE AND METHOD FOR DISPLAYING WCDMA MOBILE STATIONS IN THE MANNER OF THE LOWEST PACKAGE LOSS |
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PCT/EP2009/002340 WO2010112037A1 (en) | 2009-03-31 | 2009-03-31 | Redistribution of terminals |
EPPCT/EP2009/002340 | 2009-03-31 |
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PCT/CN2009/001075 WO2010111814A1 (zh) | 2009-03-31 | 2009-09-29 | 用于以最小包损失移动wcdma移动台的装置和方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140160938A1 (en) * | 2011-08-01 | 2014-06-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method, apparatus and system for moving wireless terminals in mobility management serving node pool |
US10448297B2 (en) | 2014-06-24 | 2019-10-15 | Nec Corporation | Network node, mobile terminal, base station and methods performed therein |
US10512011B2 (en) | 2014-06-24 | 2019-12-17 | Nec Corporation | Control node, network node, and methods performed therein |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4892084B2 (ja) * | 2010-06-16 | 2012-03-07 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信方法 |
US8537829B2 (en) * | 2010-09-15 | 2013-09-17 | Cisco Technology, Inc. | Paging control in communication networks |
JP5223952B2 (ja) * | 2011-08-12 | 2013-06-26 | 日本電気株式会社 | 移動体通信システム、移動局、交換局および移動局の位置登録方法 |
US20140204910A1 (en) * | 2011-09-07 | 2014-07-24 | Telefonaktiebolaget L M Ericsson (Publ) | Individual User Equipment Settings in Radio Access Network |
JP5885211B2 (ja) * | 2013-02-18 | 2016-03-15 | 日本電信電話株式会社 | 移動通信端末位置管理システム及びその方法 |
US9716996B2 (en) * | 2013-05-21 | 2017-07-25 | Brocade Communications Systems, Inc. | Method and system for selective and secure interaction of BYOD (bring your own device) with enterprise network through mobile wireless networks |
CN111510980B (zh) | 2014-05-08 | 2022-06-03 | 交互数字专利控股公司 | Ue到专用核心网络节点的重定向方法及无线发射接收单元 |
US10070357B2 (en) * | 2014-09-25 | 2018-09-04 | Intel IP Corporation | Smooth UE transfer within an evolved packet core |
JP6741011B2 (ja) * | 2015-02-13 | 2020-08-19 | 日本電気株式会社 | 通信システム及び認証方法 |
US9832714B2 (en) | 2015-02-13 | 2017-11-28 | Mavenir Systems, Inc. | Method and system for network node selection based user equipment agent assisted modification of temporary identity in 3G and 4G networks |
EP3089515A1 (en) * | 2015-04-30 | 2016-11-02 | Alcatel Lucent | Apparatuses, methods and computer programs for a mobility management unit of a first and a second mobile communication system and a mobile transceiver |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003036872A1 (en) * | 2001-10-23 | 2003-05-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Multicast support in packet switched wireless networks |
US20040127238A1 (en) * | 2002-12-30 | 2004-07-01 | Richard Bianconi | Method of SMS message transfer after GPRS attach |
CN1549611A (zh) * | 2003-05-11 | 2004-11-24 | 北京三星通信技术研究有限公司 | Mbms业务上下文更新的方法 |
CN1744761A (zh) * | 2004-09-04 | 2006-03-08 | 华为技术有限公司 | 一种多个运营商共享无线接入网的方法 |
CN1917697A (zh) * | 2005-08-19 | 2007-02-21 | 华为技术有限公司 | 一种在核心网节点池内转移用户的方法与节点 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI972725A (fi) * | 1997-06-24 | 1998-12-25 | Nokia Telecommunications Oy | Uudelleenreititys |
US6819937B2 (en) * | 1998-06-30 | 2004-11-16 | Nokia Corporation | Data transmission in a TDMA system |
US7079519B2 (en) * | 2000-08-23 | 2006-07-18 | Samsung Electronics Co., Ltd. | Core network separation structure and signal processing method thereof in mobile communication system |
BR0309326A (pt) * | 2002-04-17 | 2005-02-01 | Thomson Licensing Sa | Rede local sem fio (wlan) como uma rede móvel pública para intertrabalho de sistema de telecomunicações/wlan |
WO2003103325A1 (en) * | 2002-05-31 | 2003-12-11 | Nokia Corporation | Routing method and network structure |
KR100948222B1 (ko) * | 2002-06-06 | 2010-03-18 | 톰슨 라이센싱 | 자신과 이동 통신 시스템 간의 인터워킹을 위한 논리 지원노드(sgsn)로서의 wlan |
EP1609328A1 (en) * | 2003-03-20 | 2005-12-28 | Telefonaktiebolaget LM Ericsson (publ) | Method for transferring a mobile terminal in e.g. an umts-network from one server node in a pool to another server node in the same pool |
US20070213058A1 (en) * | 2006-03-08 | 2007-09-13 | Interdigital Technology Corporation | Method and apparatus for supporting handoff and serving radio network subsystem relocation procedures in a single tunnel gprs-based wireless communication system |
CN100584093C (zh) * | 2006-08-15 | 2010-01-20 | 华为技术有限公司 | 一种在移动通信系统中转移用户设备的方法及系统 |
KR20090115882A (ko) * | 2007-02-12 | 2009-11-09 | 인터디지탈 테크날러지 코포레이션 | Gprs/geran으로부터 lte eutran으로의 핸드오프를 지원하기 위한 방법 및 장치 |
WO2008128452A1 (fr) * | 2007-04-18 | 2008-10-30 | Huawei Technologies Co., Ltd. | Procédé, système et nœud cn pour transfert de charge dans la zone commune |
CN101680280B (zh) * | 2007-04-24 | 2013-06-12 | 韦尔泰克有限公司 | 锚定工具 |
-
2009
- 2009-03-31 WO PCT/EP2009/002340 patent/WO2010112037A1/en active Application Filing
- 2009-09-29 US US13/262,258 patent/US8929895B2/en not_active Expired - Fee Related
- 2009-09-29 JP JP2012502416A patent/JP2012522437A/ja active Pending
- 2009-09-29 WO PCT/CN2009/001075 patent/WO2010111814A1/zh active Application Filing
- 2009-09-29 CN CN200980158572XA patent/CN102365886A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003036872A1 (en) * | 2001-10-23 | 2003-05-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Multicast support in packet switched wireless networks |
US20040127238A1 (en) * | 2002-12-30 | 2004-07-01 | Richard Bianconi | Method of SMS message transfer after GPRS attach |
CN1549611A (zh) * | 2003-05-11 | 2004-11-24 | 北京三星通信技术研究有限公司 | Mbms业务上下文更新的方法 |
CN1744761A (zh) * | 2004-09-04 | 2006-03-08 | 华为技术有限公司 | 一种多个运营商共享无线接入网的方法 |
CN1917697A (zh) * | 2005-08-19 | 2007-02-21 | 华为技术有限公司 | 一种在核心网节点池内转移用户的方法与节点 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140160938A1 (en) * | 2011-08-01 | 2014-06-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method, apparatus and system for moving wireless terminals in mobility management serving node pool |
US9185595B2 (en) * | 2011-08-01 | 2015-11-10 | Telefonaktiebolaget L M Ericsson (Publ) | Method, apparatus and system for moving wireless terminals in mobility management serving node pool |
US10448297B2 (en) | 2014-06-24 | 2019-10-15 | Nec Corporation | Network node, mobile terminal, base station and methods performed therein |
US10512011B2 (en) | 2014-06-24 | 2019-12-17 | Nec Corporation | Control node, network node, and methods performed therein |
Also Published As
Publication number | Publication date |
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US8929895B2 (en) | 2015-01-06 |
CN102365886A (zh) | 2012-02-29 |
WO2010112037A1 (en) | 2010-10-07 |
JP2012522437A (ja) | 2012-09-20 |
US20120033659A1 (en) | 2012-02-09 |
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