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Method and apparatus for dual mode operation in wireless communication system

A technology of wireless communication and voice communication, applied in the direction of wireless communication, transmission system, selection device, etc.

Inactive Publication Date: 2003-07-02
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this hybrid network requires 1xRTT and necessary changes in the HDR protocol to support this coordination

Method used

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  • Method and apparatus for dual mode operation in wireless communication system
  • Method and apparatus for dual mode operation in wireless communication system
  • Method and apparatus for dual mode operation in wireless communication system

Examples

Experimental program
Comparison scheme
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no. 1 example

[0022] Example of no packet data switching

[0023] In this embodiment, if the HDR carrier is available, the terminal tunes to the carrier and uses it as the default carrier. figure 2 Explain the communication flow of the example. Here, the HDR carrier 120 is available, so the terminal "camps on" and monitors this channel. Then in step 200, the user initiates one or more non-real-time packet data communications through the HDR carrier 120. As shown in steps 205 and 210, the terminal can periodically place the HDR packet data communication in the hold state and adjust it to the 1xRTT carrier, so as to search for incoming 1xRTT communications sent to the terminal via the 1xRTT carrier. In step 205, because no voice communication is detected on the 1xRTT carrier, the terminal returns to the HDR carrier and resumes non-real-time packet data communication. However, in step 210, the terminal detects the incoming 1xRTT communication on the 1xRTT carrier. Therefore, the terminal automati...

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PUM

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Abstract

A wireless network terminal tunes to a high data rate ("HDR") HDR carrier when in an idle state. The terminal periodically scans a 1xRTT carrier for pages, SMS and other information. Should the scan detect an incoming communication on the 1xRTT carrier, any existing HDR packet session is terminated so that the terminal may tune to the 1xRTT carrier to receive the incoming communication. If the coverage area does not support an HDR carrier, the terminal tunes to the 1xRTT carrier and periodically scans for an HDR carrier.

Description

Invention field [0001] The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and apparatus for dual-mode operation in a wireless communication system. Background of the invention [0002] The third generation (or "3G") wireless communication service promises to unify the fragmented world cellular communication market. The 3G system will realize seamless roaming that cannot be provided by the current US mobile phone services. In addition, the 3G system promises to achieve a large amount of high-speed broadband data transmission and processing, including video, navigation on board, and Internet access. [0003] A wireless standard designed to support 3G services is cdma2000 defined by the ITU in its IMT-2000 version TM . The first phase of the cdma2000 standard research plan is called "1xRTT" (that is, radio transmission technology), which has been completed and released by the Telecommunications Industry Asso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04W36/12H04W36/26H04W68/00H04W88/06
CPCH04W68/00H04W36/26H04W88/06H04W36/12H04W36/125
Inventor H·O·迪尤法马
Owner TELEFON AB LM ERICSSON (PUBL)