Routing area update in packet radio network

A packet wireless network and node support technology, applied in data exchange network, wireless communication, network data management, etc., can solve the problem of not receiving mobile station context data, etc.

Inactive Publication Date: 2007-10-10
CORE WIRELESS LICENSING R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is not the case because at this stage the new support node SGSN 2 Mobile station context data still not received

Method used

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  • Routing area update in packet radio network
  • Routing area update in packet radio network
  • Routing area update in packet radio network

Examples

Experimental program
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Embodiment Construction

[0037] Fig. 3 shows signaling related to routing area maintenance according to a first embodiment of the present invention. In this case, other steps are the same as those shown in Figure 2, only steps 2-3a to 2-3d (through the original support node SGSN 1 data transfer) is replaced by steps 3-3a to 3-3d. Step 3-3a corresponds to step 2-3a. In this step, SGSN 1 A data packet addressed to the mobile station is received. In step 3-3b, the SGSN 2 Wait for a fixed period of time (preferably determined by the quality of service of the connection). After the waiting time, in step 3-3c, the SGSN 1 Send data packets in its memory to SGSN 2 , the latter forwarded to the mobile station MS in step 3-3d. Afterwards, the embodiment shown in FIG. 3 includes steps 2-5 to 2-15, which will not be described again here.

[0038] Fig. 4 shows signaling related to routing area maintenance according to an optional implementation of the first embodiment of the present invention. In this cas...

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Abstract

A method of transmitting data in a packet radio network to a mobile station (MS) performing a routing area update. The packet radio network transmits data (2-1, 2-3) to the mobile station (MS) via a first support node (SGSN1). The mobile station (MS) sends a routing area update message (2-1) to a second support node (SGSN2), which sends to the first support node (SGSN1) a request (2-3) for context data (2-5) of the mobile station from the first support node. The first support node (SGSN1) sends (2-3c, 3-3c) from its memory, data addressed to the mobile station to the second support node. It then waits for a predetermined period of time (3-3b) before sending the data to the second support node (SGSN2). The predetermined time (3-3b) may be fixed, depending preferably on the quality of service of the connection used by the mobile station. Alternatively the predetermined period of time expires when the second support note (SGSN2) sends to the first support node (SGSN1) a separate acknowledgement message indicating that the second support node has received the context data of the mobile station.

Description

[0001] This application is a divisional application filed by Nokia Networks Co., Ltd. on February 11, 1999, with the application number 99802910.6 and the title of the invention "Renewal of Routing Areas in Hierarchical Wireless Networks". technical field [0002] The present invention relates to the transmission of data to mobile stations in packet radio networks for routing area updates. In the following, the present invention will be described through specific examples in conjunction with the GPRS network, but the present invention can also be applied to other mobile communication systems. Background technique [0003] General Packet Radio Service (GPRS) is a new service of GSM. It is one of the items being standardized by ETSI (European Telecommunications Standards Institute) in GSM (Global System for Mobile Communications) Phase 2+. The GPRS operating environment includes one or more sub-network service areas, which are interconnected by the GPRS backbone network. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L1/18H04Q7/38H04B7/26H04W8/04H04W36/12H04W36/14H04W60/00H04W76/04H04W92/16H04W92/24
CPCH04W76/041H04W8/04H04W36/12H04W36/14H04W60/00H04W92/16H04W92/24H04W76/22
Inventor 米卡·福塞尔米科·普斯卡里
Owner CORE WIRELESS LICENSING R L
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