WO2006056125A1 - Methode pour une mise a jour de zone de routage apres une interruption bsc/pcu - Google Patents

Methode pour une mise a jour de zone de routage apres une interruption bsc/pcu Download PDF

Info

Publication number
WO2006056125A1
WO2006056125A1 PCT/CN2005/001945 CN2005001945W WO2006056125A1 WO 2006056125 A1 WO2006056125 A1 WO 2006056125A1 CN 2005001945 W CN2005001945 W CN 2005001945W WO 2006056125 A1 WO2006056125 A1 WO 2006056125A1
Authority
WO
WIPO (PCT)
Prior art keywords
sgsn
mobile station
routing area
area update
notifies
Prior art date
Application number
PCT/CN2005/001945
Other languages
English (en)
Chinese (zh)
Inventor
Danming Zhou
Wei Gu
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2006056125A1 publication Critical patent/WO2006056125A1/fr

Links

Classifications

    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection

Definitions

  • the present invention relates to a general packet radio service (GPRS) routing area update technology, and more particularly to a base station controller/packet control unit cut-off service GPRS support node (SGSN) routing area update method.
  • GPRS general packet radio service
  • SGSN base station controller/packet control unit cut-off service GPRS support node
  • GPRS Global System for Mobile Communications
  • GSM Global System for Mobile Communications
  • the SGSN is the main functional node, which is connected to the Gateway GPRS Support Node (GGSN) through the Gn interface, and is connected to the Home Location Register (HLR)/Authentication Center (AUC) through the Gr interface.
  • GGSN Gateway GPRS Support Node
  • HLR Home Location Register
  • AUC Authentication Center
  • SMC Short Message Center
  • SCP Service Control Node
  • GMLC Gateway Mobile Location Center
  • MSC Mobile Switching Center
  • the location register (VLR) is connected, connected to the GPRS support node (GSN) in other public land mobile network (PLMN) through the Gp interface, connected to the GSM base station subsystem (BSS) through the Gb interface, and through the Ga interface and the charging gateway. (CG) connected.
  • GSN GPRS support node
  • PLMN public land mobile network
  • BSS GSM base station subsystem
  • CG Ga interface and the charging gateway.
  • the MS In the GPRS network, in order to ensure mobility management between the mobile station (MS) and the SGSN, when the location and status of the MS changes, or the periodic routing area update timer in the MS expires, the MS initiates a routing area update. Only when the routing area is updated successfully, the MS can attach to the SGSN to access the GPRS network normally; otherwise, the MS will exit The phenomenon of falling off the net.
  • the GPRS routing area update includes two types of routing area update (Intra-SGSN RAU) in the SGSN and Inter-SGSN RAU between the SGSN.
  • the Intra-SGSN RAU refers to the fact that the two routing areas before and after the MS update belong to the same SGSN.
  • the er-SGSN RAU refers to the two routing areas before and after the MS update belong to different SGSNs.
  • the 3GPP protocol specifies the Intra-SGSN RAU success rate, which is the ratio of the number of Intra-SGSN RAU successes to the number of Intra-SGSN AU initiations.
  • the high success rate of the Intra-SGSN RAU indicates that the MS is more likely to access the GPRS network and is more likely to be attached to the SGSN, thereby obtaining high quality network services.
  • Each SGSN operating in a GPRS network has limited working capabilities, that is, the number of attached users and data traffic of each SGSN is limited.
  • the burst traffic is unevenly distributed. That is, some areas under the jurisdiction of the SGSN become hotspots with a large number of MS users for a period of time.
  • the SGSN is attached to the user.
  • the number and data traffic are close to or reach the system specifications, and are in a state of full load or even overload operation; at the same time, other SGSNs are idle due to the small number of attached users.
  • the system specification capacity of SGSN1 and SGSN2 is 100,000 users.
  • the number of GPRS users attached to SGSN1 and SGSN2 is about 80,000.
  • a certain commercial activity or sporting event is held in the area under the jurisdiction of SGSN1
  • a large number of GPRS users originally attached to SGSN2 are aggregated to the area belonging to SGSN1, resulting in the number of attached users on SGSN1 reaching or exceeding 100,000 users.
  • the number of attached users on SGSN2 is greatly reduced, which makes SGSN2 in a relatively idle state. This situation leads to uneven distribution of traffic on SGSN1 and SGSN2.
  • the specific method is as follows: The SGSN in the overload state is under the jurisdiction of the SGSN. Part of the BSC/PCU cutover to On the idle SGSN. As shown in Figure 2, SGSN1 governs BSC PCU1 to BSC/PCUn, and SGSN2 governs BSC/PCUt to BSC/PCUt + m. Since SGSN1 has many attached users and SGSN2 has fewer attached users, the traffic distribution is uneven.
  • the MS belonging to the BSC/PCUn is attached to the SGSN2, thereby reducing the load on the SGSN1 and making full use of the resources of the SGSN2.
  • the scope governed by SGSN1 becomes BSC/PCU1 to BSC/PCUn-1
  • the jurisdiction of SGS becomes BSC/PCUn
  • the BSC/PCUt to BSC/PCUt+m.
  • the routing area update in the GPRS system includes the following steps:
  • Step 301 The MS sends a RAU Request message to the SGSN requesting to initiate routing area update.
  • the RAU Request message sent by the MS carries the packet temporary mobile subscriber identity (P-TMSI) and the original routing area identifier (OLD RAI) cell representing the routing area information before the MS is updated - steps 302 ⁇ 303. Whether the former routing area belongs to the SGSN, and if yes, performs the Intra-SGSN RAU processing flow; otherwise, the SGSN performs the Inter-SGSN RAU processing flow.
  • P-TMSI packet temporary mobile subscriber identity
  • OLD RAI original routing area identifier
  • the SGSN determines whether the pre-updated routing area belongs to the jurisdiction of the SGSN according to the OLD RAI cell carried in the received RAU Request message.
  • the Intra-SGSN RAU process includes the following steps:
  • Step 401 The SGSN increments the number of Intra-SGSN RAU requests by one.
  • Step 402. The SGS determines whether there is subscription information of the MS. If yes, step 403 is performed; otherwise, step 406 is performed.
  • the SGSN can query the subscription information of the MS according to the P-TMSI cell carried in the received RAU Request message. If the subscription information exists, the MS can continue to access the SGSN; otherwise, the MS cannot Access to the SGSNo
  • Steps 403 ⁇ 405. The SGSN sends a RAU Accept (RAU Accept) message to the MS, and adds 1 to the number of successes of the ra-SGSN RAU. After receiving the RAU accept message, the MS sends a RAU Complete (RAU Complete) message to the SGSN.
  • RAU Accept RAU Accept
  • RAU Complete RAU Complete
  • the RAU Accept message is sent to the MS, indicating that the routing area update of the MS is accepted, and the number of successes of the Intra-SGSN RAU is increased by one; after receiving the RAU Accept message of the SGSN, the MS updates.
  • Steps 406 ⁇ 407. The SGSN sends a RAU Reject message to the MS, and then increments the number of ra-SGSN RAU failures by one.
  • the SGSN sends a RAU Reject message to the MS, and indicates in the message that the reason for rejecting the current routing area update is Implicitly Detached.
  • the MS analyzes the reason for the rejection.
  • the MS re-initiates the attach procedure specified by the 3GPP protocol.
  • the SGSN rejects the MS update request, the number of Intra-SGSN RAU failures is increased by one.
  • non-acknowledgment information mode (UI) frames are generally used for signaling interaction and data transmission between the SGSN and the MS, and user unacknowledged transmission state variables V are stored in both the MS and the SGSN.
  • V ( U ) and V ( UR ) have values ranging from 0 to 511 and are turned within this range. Turn.
  • V (U) records the serial number of the next transmitted UI frame, and V (UR) records the serial number of the next received UI frame.
  • V (U) is incremented by 1; every time a UI frame is received, V (UR) is updated to N (U) + 1, where N (U) is the UI frame.
  • Serial number, N (U) is equal to the sender of the UI frame
  • V (U) value if the N (U) value in the received UI frame is within the range of (V (UR) - 32 ) ⁇ N (U) ⁇ V (UR), and if the MS has received If the UI frame of the same N (U) value is used, the UI frame received this time is discarded.
  • V (U) and V (UR) of the cut MS in the new SGSN are both initial 0, but the V ( U ) and V ( UR ) saved by the MS are consistent with those before the cutover. If the N(U) carried in the UI frame sent by the SGSN is in the range (V(UR) -32) ⁇ N (U) ⁇ V (UR), the MS will directly discard the UI frame.
  • MS originally attached to SGSN1 and has interacted with SGSN1 over UI frames.
  • the MS has received 10 downlink UI frames from 0 to 9 sent by SGSN1.
  • the V (UR) of the MS before the cutover is 10.
  • the MS is cut to SGSN2.
  • V (UR) is the initial value of 0, and the N ( U ) value of the UI frame sent by SGSN2 to the MS also starts from 0, while the V (U) and V (UR) on the MS side remain the values before the cutover. .
  • the MS After receiving the downlink UI frame of SGSN2, the MS obtains N (U).
  • the N(U) value is from 0 to 9. Since the value of V (UR) in the MS is 10, the N (U) of the 10 UI frames The value is in the range of (V (UR) -32) ⁇ N (U) ⁇ V (UR).
  • the MS since the MS has received the UI frame of N (U) value 0 to 9 delivered by SGSN1 The N(U) value of the first 10 frames delivered by SGSN2 is the same. Therefore, the MS discards the first 10 UI frames delivered by the SGSN2.
  • the MS considers that the network does not respond to the message.
  • the RAU Request message sent.
  • the MS will repeatedly repeat the Intra-SGSN RAU process that is determined to be failed by the SGSN2 for a period of time, thus increasing the number of Intra-SGSN RAU failure processes, seriously affecting the success rate indicator, and increasing the system's Signaling burden.
  • an Intra-SGSN RAU process as shown in FIG. 5 is generally adopted, and the process includes the following steps:
  • steps 501 ⁇ 505 are exactly the same as the descriptions and processing methods of steps 401 ⁇ 405 in the method shown in FIG.
  • Step 506 The SGSN sends an Identity Request message (IMS) to the MS, requests the International Mobile Subscriber Identity (IMSI) of the MS, and starts a Waiting Identity Response (ID Response) message timer T3370.
  • IMS Identity Request message
  • IMSI International Mobile Subscriber Identity
  • ID Response Waiting Identity Response
  • Step 507. The SGSN determines whether to receive the Identity Response message before waiting for the identity recognition response message timer to expire. If yes, return to step 503; otherwise, go to step 508.
  • Step 508 The SGSN determines whether the maximum number of retransmissions of the Identity Request message is reached. If yes, step 509 is performed; otherwise, the process returns to step 506.
  • the network maintenance personnel can preset the maximum number of retransmissions of the Identity Request message of the SGSN, and each time the SGSN sends an Identity Request message, the number of times the message is sent is increased by one.
  • the SGSN determines, according to the relationship between the number of times the Identity Request message has been sent and the maximum number of retransmissions, to the MS. Send an Identity Request message.
  • Steps 509 ⁇ 510 The SGSN sends a RAU Reject message to the MS, and then the SGSN adds 1 to the number of Intra-SGSN RAU failures.
  • the SGSN sends an RAU Reject message to the MS, and indicates in the message that the reason for rejecting the update of the routing area is Implicitly Detached; then the SGSN will intra - SGSN RAU failures plus one.
  • the SGSN sends one downlink signaling, and the N(U) carried in the UI frame is incremented by 1.
  • the Intra-SGSN RAU is performed in steps 501 to 510, the Identity Request message is sent every time, N ( U ) plus 1. Therefore, by retransmitting the Identity Request message, the value of N(U) can quickly jump out of the range of (V(UR)-32) ⁇ N(U) ⁇ V(UR), so that the MS can process and respond to the SGSN normally.
  • the delivered message reduces the number of failures of the ra-SGSNRAU and improves the success rate of the process.
  • this method still has the following shortcomings:
  • the SGSN retransmits the Identity Request message to the MS multiple times through the BSC/PCU. Therefore, in the initial stage of the cutover, the signaling traffic burden of the SGSN and the BSC/PCU is heavy. Affect the performance of the GPRS system;
  • the object of the present invention is to provide a routing area update method after BSC/PCU cutover, which improves the success rate of the Intra-SGSN RAU.
  • the present invention provides a routing area update method after a BSC/PCU cutover, the method comprising the following steps:
  • the SGSN determines whether the routing area before the mobile station update belongs to the SGSN, and if yes, performs step B, otherwise, Routing area update processing flow between SGSNs, and ending the routing area update process;
  • the SGSN adds 1 to the number of routing area update requests in the SGSN, and determines whether there is subscription information of the mobile station in the SGSN. If yes, step C is performed. Otherwise, the SGSN notifies the mobile station to initialize its own state variable, and then performs SGSN. The subsequent process of updating the inner routing area, and ending the routing area update process;
  • the SGSN notifies the mobile station that its routing area update request has been accepted, and increases the number of successful routing update times in the SGSN by one. After the mobile station learns that the routing area update request is accepted, it notifies the SGSN that the routing area update is complete.
  • the following process of the routing area update in the SGSN includes the following steps:
  • the SGSN notifies the mobile station that its routing area update request is rejected, and increases the number of failed routing update times in the SGSN by one;
  • Step B The subsequent process of routing area update in the SGSN includes the following steps:
  • SGS informs the mobile station of the identity information
  • the mobile station notifies that the SGSN has completed initialization of its own state variable and sends its own identity information to the SGSN;
  • the SGSN informs the mobile station that its routing area update request has been accepted, and increments the number of successful routing area updates in the SGSN by one. After the mobile station learns that the routing area update request is accepted, it notifies the SGSN that the routing area update is complete.
  • the subsequent process of updating the routing area in the SGSN in step B includes the following steps:
  • step B31 The SGSN determines whether the identity switch is turned on, and if so, step B32 is performed, otherwise, step B35 is performed;
  • the SGSN notifies the mobile station to report the identity information; B33.
  • the mobile station notifies the SGSN that the initialization of its own state variable has been completed, and sends its own identity information to the SGSN;
  • the SGSN notifies the mobile station that its routing area update request has been accepted, and increases the number of successful routing area update times in the SGSN by one. After the mobile station learns that the routing area update request is accepted, it notifies the SGSN that the routing area update is completed, and then ends the routing area update. Process;
  • the SGSN notifies the mobile station that its routing area update request is rejected, and increases the number of failed routing update times in the SGSN by one;
  • the state variables include at least: a non-acknowledgment transmission state variable and a reception state variable.
  • Step B The method for the SGSN to notify the mobile station to initialize the state variable of the mobile station is: The SGSN sends a logical link GPRS mobility management reset request message to the mobile station.
  • the mobile station notifies the SGSN that the initialization of its own state variable has been completed: the mobile station sends a logical link GPRS dynamic management reset acknowledgement message to the SGSN.
  • Step A The mobile station sends a routing area update request to the SGSN by: the mobile station sends a routing area update request message to the SGSN;
  • Step C The method for the SGSN to notify the mobile station that the routing area update request has been accepted is: the SGSN sends a routing area update accept message to the mobile station;
  • Step C The mobile station notifies the SGSN that the routing area update is completed: the mobile station sends a routing area update complete message to the SGSN.
  • the method for the SGSN to notify the mobile station that the routing area update request is rejected is: The SGSN' sends a routing area update reject message to the mobile station.
  • the method for the SGS to notify the mobile station to report the identity information is: the SGSN sends an identity identification request message to the mobile station;
  • the method for the mobile station to send its identity identification information to the SGSN is:
  • the SGSN sends an identity response message carrying its own identity information.
  • the GPRS system can quickly improve the success rate of the Intra-SGSN RAU after the BSC/PCU is cut and connected.
  • the present invention has the following beneficial effects:
  • the SGSN sends an LLGMM-RESET-REQ message to the MS, requesting the MS to V ( U ) and V ( U ) are set to an initial value of 0 to ensure that the MS does not discard the SGSN message, reduce the number of failures of the Intra-SGSN RAU, and improve the success rate of the ra-SGSN RAU after the BSC/PCU cutover. Improve the overall performance of the system;
  • the present invention enables the cut-and-route MS to successfully complete the Intra-SGSN RAU and attach it to the SGSN, thereby avoiding frequent retransmission of messages, effectively reducing the signaling traffic burden of the GPRS system, and saving System resources;
  • the present invention adds a few steps to the original ra-SGSN RAU process basis, which is relatively simple.
  • Figure 1 shows the structure of the GPRS network.
  • Figure 2 is a schematic diagram of the BSC/PCU cutover in the GPRS network.
  • Figure 3 is a flow chart showing the routing area update after the BSC PCU is cut in the GPRS network.
  • Figure 4 is a flow chart of the Intra-SGSN RAU after the existing BSC/PCU cutover.
  • FIG. 5 is a flow chart of an improved Mra-SGSN RAU after the existing BSC/PCU cutover.
  • Figure 6 is a diagram showing an improved Mira-SGSN RAU in Figure 4 of Embodiment 1 of the present invention. flow chart.
  • FIG. 7 is a flow chart of the Mra-SGSN RAU improved on the basis of FIG. 5 according to Embodiment 2 of the present invention.
  • FIG. 8 is a flow chart of the Mra-SGSN RAU after the BSC/PCU cutover is improved by combining FIG. 4 and FIG. 5 according to Embodiment 3 of the present invention. Mode for carrying out the invention
  • the invention is a routing area update method after the BSC/PCU cutover, and the basic idea is: if the MS subscription information does not exist in the cut SGSN, the logical link GPRS mobility management reset request is introduced (LLGMM- RESET-REQ) Message and Logical Link GPRS Mobility Management Reset Acknowledgement (LLGMM-RESET-C F ) Message Logical Link Control Reset ( LLC RESET ) flow, causing MS to set its own V ( U ) and V ( UR ) The initial value is 0, so that the SGSN is consistent with the SGSN to ensure that the MS can process the message sent by the SGSN normally, and improve the success rate of the cut-off ra-SGSN AU.
  • the present invention can optimize the existing Intra-SGSN RAU. process after the existing BSC/PCU cutover shown in FIG. 4 or FIG. 5, and can also cut the ra-SGSN RAU process after the two existing BSC/PCU cutovers. Optimized after combining.
  • Embodiment 1 The IXC RESET procedure is introduced in the Intra-SGSN RAU procedure after a simple existing BSC/PCU cutover.
  • this embodiment adds a LLC RESET flow to FIG. 6
  • the ra-SGSN RAU process after the BSC/PCU cutover includes the following steps:
  • Step 606 The SGSN sends a LLGMM-RESET-REQ message to the MS to negotiate parameters with the MS. .
  • the SGSN causes the MS to set V (U) and V (UR) to an initial value of 0 by sending a LLGMM-RESET-REQ message.
  • Step 607 - 610 The SGSN sends a RAU Reject message to the MS, and adds 1 to the number of failures of the Mra-SGSN RAU.
  • the MS sends the LLGMM-RESET-C P message to the SGSN, the attach procedure is started.
  • the SGSN adopts a method of directly rejecting the update of the MS routing area, that is, sending an RAU Reject message with the Implicitly Detached reason to the MS, and the SGSN adds 1 to the number of failures of the Mra-SGSNRAU.
  • the LLGMM-RESET-CNF message is first sent to the SGS, indicating that the MS side has completed the initialization of V(U) and V(UR); then, the MS restarts the attach procedure specified by the 3GPP protocol, that is, the MS sends the SGS to the SGS.
  • the SGSN After carrying the Attach Request message of the IMSI cell, the SGSN obtains the subscription information of the MS from the HLR according to the IMSI cell, and returns an Attach Accept message to the MS, and then the MS sends the attach complete to the SGSN. (Attach Complete) message indicating that the MS has successfully attached to the SGSN.
  • Embodiment 2 The IXC RESET procedure is introduced in the improved Intra-SGSN RAU procedure after the existing BSC/PCU cutover.
  • the Intra-SGSN RAU process after the BSCPCU cutover at this time includes the following steps:
  • steps 701 to 705 are exactly the same as those of step 401 405 in the method shown in FIG.
  • Step 706 The SGS sends a LLGMM-RESET-REQ message to the MS to negotiate parameters with the MS.
  • the SGSN causes the MS to set V (U) and V (UR) to an initial value of 0 by sending a LLGMM-RESET-REQ message.
  • Steps 707 ⁇ 709. The SGSN sends an Identity Request message to the MS, and then the MS sends an LLGMM-RESET-CNF message and an Identity Response message to the SGSN in turn, and returns to step 703.
  • the SGSN first requests to obtain the IMSI of the MS by sending an Identity Request message to the MS; then, the MS sends an LLGMM-RESET-CNF message to the SGSN, indicating that the MS has completed initialization of V (U) and V (UR); The MS sends an Identity Response message to the SGSN to upload the IMSI of the MS to the SGSN.
  • the SGSN After the SGSN obtains the subscription information of the MS from the HLR according to the IMSI cell, the SGSN returns to step 703 to continue the subsequent process of the Intra-SGSN RAU.
  • Embodiment 3 The Intra-SGSN RAU process after the cutover of two existing BSC/PCUs is combined and introduced into the LLC RESET process.
  • an identity switch is added to the SGSN, so that the SGSN determines the manner of subsequent interaction with the MS by determining the state of the identity recognition switch.
  • the method for improving the success rate of the Intra-SGSN RAU after the BSC/PCU cutover includes the following steps:
  • steps 801 to 805 are exactly the same as the descriptions and processing methods of steps 401 to 40 5 in the method shown in FIG.
  • Step 806 The SGSN sends a LLGMM-RESET-REQ message to the MS to negotiate parameters with the MS.
  • the SGSN causes the MS to set V ( U ) and V ( UR ) to an initial value of 0 by sending a LLGMM-KESET-REQ message.
  • Step 807 The SGSN determines whether the identity switch is turned on. If yes, step 808 is performed; otherwise, step 811 is performed. In this step, the SGSN determines the manner of subsequent interaction with the MS by determining the status of the identity switch, that is, if the identity switch is turned on, the SGSN ⁇ orientation MS requests its IMSI to continue to complete the routing area update process; otherwise, The SGSN takes the form of first rejecting the MS routing area update and then causing the MS to initiate the attach procedure.
  • Steps 808 ⁇ 810. The SGSN sends an Identity Request message to the MS, and then the MS sends an LLGMM-RESET-CNF message and an Identity Response message to the SGSN in turn, and returns to step 803.
  • the SGSN first requests the acquisition by sending an Identity Request message to the MS.
  • the IMSI of the MS then, the MS sends an LLGMM-RESET-CNF message to the MS, indicating that the MS side has completed the initialization of V (U) and V (UR); then, the MS sends an Identity Response message to the SGSN again, the MS
  • the MSI is uploaded to the SGSN.
  • the SGSN After the SGSN obtains the subscription information of the MS from the HLR according to the IMSI cell, the SGSN returns to step 803 to continue the subsequent process of the Intra-SGSN RAU.
  • Steps 811 ⁇ 814 The SGSN sends a RAU Reject message to the MS, and adds 1 to the number of failures of the Mra-SGSN RAU. After the MS sends the LLGMM-RESET-CNF message to the SGS, the attach procedure is started.
  • the SGSN Since the identity switch is not turned on, the SGSN adopts a method of directly rejecting the MS routing area update, that is, sending a RAU Reject message rejecting the reason to Implicitly Detached to the MS, and the SGSN increments the number of Intra-SGSN RAU failures by one.
  • the LLGMM-RESET-CNF message is first sent to the SGSN, indicating that the MS side has completed the initialization of its own V ( ⁇ ) and V (UR); then, the MS restarts the attach procedure specified by the 3GPP protocol, that is, the MS direction
  • the SGSN obtains the subscription information of the MS from the HLR according to the IMSI.
  • the cell returns an Attach Accept message to the MS, and then the MS sends an Attach Complete message to the SGSN to indicate the MS.
  • the SGSN has been successfully accessed.
  • the MS since both V (U) and V (UR) of the MS are cleared, the MS considers that it has never received any UI frames; in addition, due to V(U) and V(UR) in the SGSN and MS If both are 0, the N(U) is also equal to 0 when the SGSN interacts with the MS for the first time. At this time, N (U) is not in the protocol (V (UR) - 32) ⁇ N (U) ⁇ V (UR ) within the scope. Therefore, the MS can normally receive messages from the SGSN after initialization without directly discarding it.
  • step 811 to step 814 Although the Intra-SGSN RAU of the current MS fails, when the MS initiates the routing area update request again, the MS will successfully complete the subscription information of the MS already stored on the SGSN. Intra-SGSN RAU.
  • the MS after the BSC/PCU cutover can successfully implement the Intra-SGSN RAU in the new SGSN; and in the case that the identity switch is turned off, the cutover is performed.
  • the MS needs to go through a failed Intra-SGSN RAU process before it can successfully attach to the SGSN.
  • the MS can successfully attach to the SGSN in the attaching process immediately after the first Intra-SGSN RAU process initiated after the cutover or the first Intra-SGSN RAU failure, which greatly reduces the after-cutting of the Mra-SGSNRAU.
  • the number of failures which effectively improves the success rate of the Cutover Intra-SGSNRAU.

Abstract

L'invention concerne une méthode pour une mise à jour de zone de routage après une interruption BSC/PCU. Cette méthode comprend les étapes suivantes: (A) une station mobile envoie une demande de mise à jour de zone de routage au SGSN, le SGSN décide si le routage de la station mobile avant sa mise à jour appartient à ce SGSN, le cas échéant, il effectue l'étape (B), sinon il effectue la mise à jour de zone de routage du flux de traitement entre les SGSN, et il arrête ce flux de mise à jour de zone de routage; (B) le SGSN ajoute 1 à la durée de demande de mise à jour de zone de routage, décide si il existe des informations d'abonnement pour la station mobile dans le SGSN, le cas échéant, il effectue l'étape (C), sinon, le SGSN notifie la station mobile pour lancer la variable d'état, puis il traite le flux subséquent de mise à jour de zone de routage dans le SGSN, et il arrête ce flux de mise à jour de zone de routage; (C) le SGSN notifie la station mobile que sa demande de mise à jour de zone de routage est acceptée, et il ajoute 1 à la durée de mise à jour de zone de routage réussie dans le SGSN, la station mobile notifie ensuite le SGSN que la mise à jour de zone de routage est terminée.
PCT/CN2005/001945 2004-11-25 2005-11-17 Methode pour une mise a jour de zone de routage apres une interruption bsc/pcu WO2006056125A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200410091725.2 2004-11-25
CNB2004100917252A CN100389633C (zh) 2004-11-25 2004-11-25 一种服务通用分组无线业务支持节点路由区更新方法

Publications (1)

Publication Number Publication Date
WO2006056125A1 true WO2006056125A1 (fr) 2006-06-01

Family

ID=36497740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001945 WO2006056125A1 (fr) 2004-11-25 2005-11-17 Methode pour une mise a jour de zone de routage apres une interruption bsc/pcu

Country Status (2)

Country Link
CN (1) CN100389633C (fr)
WO (1) WO2006056125A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102231902B (zh) 2011-01-18 2014-07-30 华为技术有限公司 一种终端选择网络方法及双待终端
CN102571581B (zh) * 2012-01-05 2015-11-25 华为技术有限公司 Mocn网络中重路由的方法、系统及基站控制器、核心网设备
CN108769976B (zh) * 2018-06-01 2021-07-20 深圳市知赢科技有限公司 网络附着控制方法、装置和移动终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989204A (en) * 1988-02-10 1991-01-29 Nec Corporation High throughput communication method and system for a digital mobile station when crossing a zone boundary during a session
CN1243628A (zh) * 1997-01-20 2000-02-02 诺基亚电信公司 分组无线系统中路由区的更新
WO2002037884A1 (fr) * 2000-11-02 2002-05-10 Nokia Corporation Commande des informations de localisation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989204A (en) * 1988-02-10 1991-01-29 Nec Corporation High throughput communication method and system for a digital mobile station when crossing a zone boundary during a session
CN1243628A (zh) * 1997-01-20 2000-02-02 诺基亚电信公司 分组无线系统中路由区的更新
WO2002037884A1 (fr) * 2000-11-02 2002-05-10 Nokia Corporation Commande des informations de localisation

Also Published As

Publication number Publication date
CN100389633C (zh) 2008-05-21
CN1780476A (zh) 2006-05-31

Similar Documents

Publication Publication Date Title
KR101098592B1 (ko) 무선 통신 시스템상에서 점대다 서비스를 수신하는 방법
KR101472938B1 (ko) 사용자 디바이스 휴면
KR100972261B1 (ko) 이동통신 시스템에서의 데이터 관리 방법
RU2421910C2 (ru) Управление передачей данных в сети беспроводной связи
US8126469B2 (en) Method and apparatus for call setup latency reduction
RU2408146C2 (ru) Способ и устройство управления передачей блока данных
RU2235432C2 (ru) Протокол автоматического запроса на повторную передачу
US8335832B2 (en) Method for releasing buffered data of a serving gateway
KR20180136484A (ko) 라이트 커넥션 제어 방법 및 장치
KR20190051051A (ko) 무선 통신 시스템에서의 반영형 서비스 퀼리티 적용 방법 및 이를 위한 장치
CA2556799A1 (fr) Procede de gestion de flux de services d'un poste d'abonne mobile dans un systeme d'acces sans fil mobile a large bande
AU2005204215A1 (en) Repairing errors in data of MBMS service
KR20070095755A (ko) 복수의 네트워크 엔터티를 포함하는 이동 통신시스템에서의 데이터 처리 방법
WO2008133477A1 (fr) Procédé de transmission de signaux de commande dans un système de communication sans fil
WO2012151981A1 (fr) Procédé, système, équipement utilisateur cible pour transmettre des informations de déclenchement de dispositif mtc
CN101888675A (zh) 一种长期演进系统中跨基站切换方法及系统
WO2011109938A1 (fr) Procédé, dispositif et système destinés à remettre un compte rendu contenant des informations d'élément de réseau d'accès sans fil
US8520633B2 (en) Method and system for synchronizing wireless devices with a communication network
CN113079527A (zh) 用于控制无线通信系统中的网络切片数据速率的设备和方法
US20100136995A1 (en) Method for enhancing of controlling radio resources, method for transmitting status report, and receiver in mobile communication system
WO2006056125A1 (fr) Methode pour une mise a jour de zone de routage apres une interruption bsc/pcu
US20150049719A1 (en) Method and Apparatus for Establishing Direct Tunnel
US9001817B2 (en) Method and system for maintaining wireless links in a communication network
KR20100008232A (ko) 무선연결 설정방법
CN114765754A (zh) 无线服务开放方法及第一执行主体

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05812374

Country of ref document: EP

Kind code of ref document: A1