G3 facsimile transmission method on CDMA cellular networks
First Claim
1. A method for transmitting a facsimile between a code division multiple access (CDMA) cellular network having a mobile station and a base station having one of a CDMA cellular network and a different network, said method comprising the steps of:
- a. recognizing a modem command or modem configuration and call establishment using a data terminal in the mobile station comprising upper layer protocols including an application software, an application interface, a transport control protocol, an internet control message protocol, an internet protocol, and a point-to-point protocol, storing the modem command until a modem is acquired using the data terminal, and requesting a facsimile call using the data terminal with a modem dial command to a mobile terminal in the mobile station having a facsimile modem and lower layer protocols including a radio link protocol and a CDMA traffic channel;
b. setting up a call connection between the base station and the mobile terminal following call processing and acquiring the facsimile modem from the base station;
c. transmitting a facsimile image data encapsulated by the upper layer protocols from the data terminal to the mobile terminal;
d. encapsulating and segmenting the facsimile image data using the lower layer protocols and transmitting the encapsulated and segmented facsimile image data from the mobile terminal to the base station; and
e. recognizing the encapsulated and segmented facsimile image data at the base station, removing the upper and lower layer protocols from the encapsulated and segmented facsimile image data to reveal the raw facsimile image data, converting raw facsimile image data and transmitting the converted raw facsimile image data to a fax terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
A facsimile transmission method on the CDMA cellular networks is disclosed and includes the following steps. A data terminal having upper layer protocols of a PPP and above recognizes and stores a modem command until a facsimile modem in a base station is acquired, and requests the fax call caused by a modem dial command with dial number to the mobile terminal through a serial interface. The mobile terminal establishes a fax call with a base station based on the same call processing as that of a voice, and acquires the facsimile modem in a base station. After the call establishment between the mobile terminal and the base station, the upper layer protocols in the data terminal are initialized and negotiated with counterpart protocols in the said base station. The data terminal transmits the fax image data encapsulated by the upper layer protocols to the mobile terminal and the mobile terminal transmits it encapsulated and segmented by the lower layer protocols to the base station. The base station recognizes the encapsulated and segmented image data, processed it to remove the protocols and converts the raw data to transmit to the counterpart fax terminal in an identical CDMA network or a different network such as PSTN. Thereafter, the facsimile application software in the data terminal and the counterpart fax terminal progress the facsimile service following the standard phases of the ITU-T recommendation T.30.
27 Citations
4 Claims
-
1. A method for transmitting a facsimile between a code division multiple access (CDMA) cellular network having a mobile station and a base station having one of a CDMA cellular network and a different network, said method comprising the steps of:
-
a. recognizing a modem command or modem configuration and call establishment using a data terminal in the mobile station comprising upper layer protocols including an application software, an application interface, a transport control protocol, an internet control message protocol, an internet protocol, and a point-to-point protocol, storing the modem command until a modem is acquired using the data terminal, and requesting a facsimile call using the data terminal with a modem dial command to a mobile terminal in the mobile station having a facsimile modem and lower layer protocols including a radio link protocol and a CDMA traffic channel; b. setting up a call connection between the base station and the mobile terminal following call processing and acquiring the facsimile modem from the base station; c. transmitting a facsimile image data encapsulated by the upper layer protocols from the data terminal to the mobile terminal; d. encapsulating and segmenting the facsimile image data using the lower layer protocols and transmitting the encapsulated and segmented facsimile image data from the mobile terminal to the base station; and e. recognizing the encapsulated and segmented facsimile image data at the base station, removing the upper and lower layer protocols from the encapsulated and segmented facsimile image data to reveal the raw facsimile image data, converting raw facsimile image data and transmitting the converted raw facsimile image data to a fax terminal. - View Dependent Claims (2, 3, 4)
-
Specification