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Indication of content of a message element

A technology of information unit and message, applied in the direction of electrical components, wireless communication, duplex signal operation, etc., can solve problems such as no solutions are proposed

Active Publication Date: 2009-05-13
HMD GLOBAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other failure conditions include that no PS message is received, or that the PS message indicates a failure in the PS core network, but no solutions to these problems have been proposed so far

Method used

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  • Indication of content of a message element
  • Indication of content of a message element
  • Indication of content of a message element

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] figure 1 A message sequence diagram is shown, in which the source BSS1 sends a handover request message 2 to the CS core network 3 . The CS core network sends a handover request 4 to the target BSS 5 . Similarly, the source BSS1 sends a PS handover request message 6 to the PS core network 7, which sends a PS handover request 8 to the target BSS5. When CS and PS resources have been allocated 9 by the target BSS, the target BSS sends a handover request confirmation 10 back to the CS core network, and the CS core network sends a BSSMAP handover command 11 to the source BSS. The target BSS also sends a PS Handover Request Acknowledgment 12 . Since both CS and PS resources are allocated, these messages 10, 11, 12 contain a DTM handover command message. However, due to some delay or error 13 within the PS domain, no message is sent from the PS core network 7 within the expiry 14 of the predetermined time T23.

[0027] figure 2 Another example showing message failure. T...

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PUM

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Abstract

A method of indicating the content of a message element comprises providing an indicator outside that message element. This is particularly applicable to indication of a dual transfer mode handover command.

Description

technical field [0001] The present invention relates to a method of indicating the content of a message element, such as indicating a dual-transport mode handover command in an existing message, in particular General Packet Radio Service (GPRS) Enhanced for Global System for Mobile Communications (GSM) Evolution (EDGE) DTM handover The data rate provides an improved indication of the Dual Transfer Mode (DTM) switching command. Background technique [0002] DTM handover is a recently developed procedure designed to allow handover to a new cell by a mobile phone that has currently been allocated dedicated, circuit-switched (CS) resources and also allocated packet-switched (PS) resource. This process uses the existing switching process of CS resources and PS resources in parallel. [0003] Such as figure 1 and 2 As shown, the source base station subsystem (BSS) 1 initiates the handover by sending two requests, one request for circuit switched resources, which is sent to the...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W92/14H04W36/38
CPCH04W36/38H04W36/0011H04L5/14
Inventor D·霍尔
Owner HMD GLOBAL
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