Method of invoking and cancelling voice or data service from a mobile unit

A mobile unit, data technology, applied in the field of communication, can solve the problem that the wireless channel cannot be effectively used and so on

Inactive Publication Date: 2004-05-05
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of a vocoder to digitize the modem tone and send it over the digital radio link results in inefficient use of the radio channel

Method used

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  • Method of invoking and cancelling voice or data service from a mobile unit
  • Method of invoking and cancelling voice or data service from a mobile unit
  • Method of invoking and cancelling voice or data service from a mobile unit

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Embodiment Construction

[0016] Currently, there are several methods of transferring data from one terminal to another using the standard telephone network. Terminals connected via the telephone network may be fax machines, personal computers, credit card validators and telemetry devices. The standard connections for these devices are shown in Figure 1. For example, assume that the terminal device 10 transmits information to the terminal device 50 . The terminal device generates digital data 110 representing this information. Modem 20 converts digital data 110 into analog signal 120 . The analog signal 120 has a bandwidth and power level suitable for transmission over the standard telephone network 30 . Telephone network 30 transmits analog signal 120 to its destination. The telephone network introduces noise, so the output audible signal 130 is an estimate of the analog signal 120 . Modem 40 converts audible signal 130 into digital data 140, which is an estimate of the digital signal. The termi...

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Abstract

A method of invoking and cancelling voice and data service between a mobile unit and a base station. Using a standard telephone system, the connection for a voice service and a data service is the same. With the introduction of the digital wireless link, the voice connection and the data connection are different. Therefore new dialing commands which indicate the intent of the connection are created. These commands can also be used to designate the intent of the call from a mobile unit capable of data and voice service but not capable of simultaneous voice and data service. They can also be used to invoke simultaneous voice and data services.

Description

technical field [0001] The present invention relates to communications. More specifically, the present invention relates to a new and improved method of invoking or canceling a voice or data connection. Background technique [0002] Currently, there are many types of devices that use the standard telephone network to transfer data from one terminal to another. One of the most common types of terminals that employs the standard telephone network to transmit data is the facsimile (FAX) machine. Like other terminals on the standard telephone network, fax machines use a modem to convert digital information into audible analog tones for transmission over the telephone network. At the receiving fax machine, an estimate used by the modem to convert the tone back into the original digital information transmitted by the transmitting fax machine. [0003] Due to the configuration of cellular and personal communication wireless systems, end users may wish to connect their terminal e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M11/00H04W76/04
CPCH04W76/025H04W76/064H04W76/34H04W76/15
Inventor 关·贝利马休·S·格罗夫加迪·卡米罗伯特·H·金博尔戴维·S·普罗珀赫
Owner QUALCOMM INC
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