TW437242B - Method for improving the handing over a connection from one SGSN to another SGSN - Google Patents

Abstract

The present invention relates to a method for improving the handing over of a connection from one SGSN (I) to another, i.e. when an MS (mobile station) moves from one SGSN service area to another, and for the purpose of not interrupting the packet transmission and possible layer 3 procedures, and for optimizing the network utilization without adding complexity to SGSN, it is according to the invention suggested that at inter SGSN routing update, the old SGSN (I) is given the role as a temporary anchor, whereas the other (new) SGSN (II) is temporarily working as a serving SGSN.

Description

4 3 2 V. Description of the invention (1) The present invention relates to a method for improving the handover of a connection from one SGSN to another SGSN 'is' when-MS (mobile station) moves from the _SGSN service area to another area Time. More specifically, the present invention relates to the general packet radio service (GPRS) on the GSM ° ancient mobile station (MS) in the effective GPRS mode, that is, sending information, when moving from one SGSN service area to another, the packet transmission and possible Level 3 procedures should not be interrupted. Due to the complicated conditions of mechanical use and layer support, the Sgm changes directly and does not send a very large amount of control data from one SGSN to another. Another problem is that transactions with other online festivals must also be redirected to new levels. Technical situation The GSM language service uses the concept of staking to solve this problem. It means that in the network section (MSC / VLR) connection is mainly to establish and maintain the entire entire call period. This section is named ‘Stubbing MSC / VLR’. If the user moves into the coverage area of another MSC / VLR, the new MSC / nR is only used as a transition section. This section is named 'Servo MSC / VLR'. As for the connection control, it still exists in the fixed call [C / VLR throughout the call period. Problems related to the aforementioned technology GPRS has no effective solution to this problem. Since the long connection time (hour meter) for GpRs is compared with a circuit-switched connection (minute meter), the same solution for GPRS can cause most of the fixed servo pins.

43 724 2 V. Description of the invention (2) The purpose of the present invention The purpose of the present invention is to provide a method for the delivery of ^ connections' so that the packet transmission and possible layer 3 procedures will not be interrupted. Another object of the present invention is to provide such a method whereby the layer 3 procedure need not be designed to support daily updates between SG and SN. Yet another object of the present invention is to provide a method whereby the risk of losing a payload packet can be reduced. Another object of the present invention is to provide a method by which the fall-through effect from one SGSN to another payload packet is not needed 'and therefore simplify the design. Yet another object of the present invention is to provide a method for selecting the optimal use of the network without increasing the complexity of the SGSN. Another object of the present invention is to provide a method whereby the reduction in service when a connection is submitted from an SGSN to a connection can be reduced as viewed from a standpoint. SUMMARY OF THE INVENTION The above-mentioned object can be achieved by the features described in the method described above in the patent application. In other words, the existing method proposes to play a role of temporary staking in the daily life of Shen Jian, as for the new s and the old N to get paid coffee. As long as the controller is connected, the time will be maintained as a servo. When all activities have stopped connecting to Xiao, the packet is sent to this pin. There are no layer 3 procedures and no progress matters for other networks. ^ Yes, the ‘no data transmission’ post is moved to the servo SGSN. , That is, connection control self-fixing

42 437242 V. Description of the invention (3) The pin between the solid pile and the feeding SGSN is slightly seam. 1? _0_01_〇 ^^ _. Certain control signals are needed to handle wireless power. More advantages and characteristics of this method will be apparent from the following drawings and the description of the patent application. C. Brief description of the drawings. Figures 1 and 2 are the numbers; The principle of step implementation. The implementation states that, as described in the text, the present invention relates to a method for connecting a self-SGSN "union to another without interrupting packet transmission and control signals. This method allows the network to generate a temporary pin for the old and new ”Between SGSN” temporary pins exist until the connection of the fixed SGSN can be reliably converted to the new% training, and at the same time, the packet conversion is instructed to go directly back and forth between the SGSN and the new SGSN. The sequence of daily updates between SGSNs is shown by the number k. The principle of the one-step process with reference to Figures 1 and 2 is shown. This J structure has no impact on the ongoing, level 3 procedures and any payload development. Actually, because the temporary clever wave is not seen for level 3, level 3 is not designed for S blanket. The current solution in GPRS requires that all Level 3 procedures must be designed to cater for daily updates. Since the temporary loss of piles to the new SGSN condition occurs when the 'lost payload seal' is performed without traffic, the risk of the payload clause taking over when the connection has entered the standby packet can be minimized. The drop of the packet from the temporary fixation to the new SGSN

苐 Page 7 a372 ^ 2 V. Description of the invention (4) Not necessary for Dao, thus simplifying the design. Signal between copy and external nodes. Because the solution allows the connection to complete ongoing tasks and services before moving the provision to the new account, services such as payments can be completed to the billing channel under normal circumstances before the provision is moved to the new SGSN and payment continues. Advantages of the invention This solution selects the best conditions for network utilization without increasing the complexity of SGSM. The user will not suffer any loss of service, such as no peer-to-peer retransmission and no level 3 program interruption. Short form GPRS-General Packet Radio Service SGSN-Serving GRPS support node GGSN-Gateway GPRS support node MSC / VLR-Mobile Switching Centre / Visitor Location Register Mobile Exchange / Visitor Location Register

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Claims (1)

43 72 ^ 2-Case No. 87120823 Amendment VI. Scope of Patent Application-Supplement 1. No. 1. A method for improving the submission from one SGSN (I) to another connection. That is, when a mobile station (MS) When the SGSN service area is moved to another, it is characterized in that during the daily update of the SGSN, the old SGSN (I) is given the role of temporary anchoring, and the other (new) SGSN temporarily works as a servo SGSN. 2. The method in item 1 of the patent scope is characterized in that a temporary pin is generated between the old SGSN and the new SGSN when the SGSN is frequently updated. The temporary pin is allowed as long as the connection control procedure is maintained. Valid, including data packet transmission. 3. If applying for a patent, the method around item 1 or 2 is characterized in that the temporary pins are allowed to be effective until the connection of the fixed SGSN (I) can be stably transferred to the new SGSN (II) 'and at the same time redirect the packet. The transfer is performed directly between% SGSNCI I) and β ^ 4. The method of item 3 of the patent application is characterized in that when all activities for connection have been stopped, the connection is controlled from the fixed pile. Jiang = service ), That is, when there is no data to send, there is no level 3 program: when the transaction in the network | p is valid. ·· '5. As for the method in the aforementioned patent application No. 4 scope, the H between the AO SS SSSN (I) and SGSN (II) is the pile-fixing interface. The Gb 6 is slightly modified by Wang Feng, the leader of the application. As the method in the aforementioned patent application No. 5, it is often updated and implemented in Erxin. M: Features are sgsn. • Sequential steps are carried out without impact. The temporary Gb channel is not the method of the third level. For example, the method of the 6th scope of the patent application, 3GSN and external ribs go to the ground. Implementation with external nodes, allowing problematic connections Page 1 2000.11.07. 009 O: \ 56 \ 56086.ptc Page 2 2000. 11.07.010