Data over cellular

• US 5,701,297 A
• Filed: 07/28/1994
• Issued: 12/23/1997
• Est. Priority Date: 09/27/1989
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Aldrich, James Peter, Gay, Ben Douglas, Csapo, John Steven
• Primary Examiner(s): TON, DANG T
• Application Number:
  US08/281,873
• Time in Patent Office: 1,244 Days
• Field of Search: 370/95.1, 370/95.3, 370/110.1, 370/60, 370/94.1, 370/85.7, 370/79, 370/105.2, 370/105.4, 370/321, 370/328, 370/340, 370/341, 370/349, 370/311, 370/347, 370/346, 370/319, 370/323, 370/326, 370/329, 370/331, 370/336, 455/33.1, 455/34.1, 455/34.2, 455/53.1, 455/54.1, 455/15, 455/17, 455/33.2, 455/37.1, 379/58, 379/59, 379/60, 379/63
• US Class Current: 370/341
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic

Abstract

There is provided a mechanism for providing data services over a wireless cellular network. It comprises: establishing communications over the cellular network; upon a subscriber designating that it has a data communication, redirecting data traffic to the designated frequency (a shared data channel) on an interconnected wireless data network exhibiting (cellular) reuse of data channel frequencies; and returning the subscriber'"'"'s transceiver to voice mode upon cessation of data communications. Data service will appear to have been provided by the cellular network.

Claims

1. A method of providing data services in a cellular network comprising:

establishing a call between a subscriber unit and a base station over a voice cellular network using a voice transmission protocol;

handing off the call from the voice cellular network to an interconnected wireless data network for transmission of user data traffic upon receiving a data designation from one of the subscriber and the base station;

sending and receiving user data traffic between the subscriber and the interconnected wireless data network; and

handing off the call back to the voice cellular network upon the completion of the sending and receiving of user data traffic by the wireless data network.

2. The method as claimed in claim 1 above, wherein the step of establishing a call further comprises the step of allocating a voice traffic channel to the subscriber.

3. The method as claimed in claim 1 above, wherein the interconnected wireless data network exhibits a cellular reuse of a plurality of data channel frequencies.

4. The method as claimed in claim 1 above, wherein the interconnected wireless data network has a shared data channel.

5. The method as claimed in claim 4 above, wherein data transmissions on the shared data channel is a packet switched data transmission.

6. The method as claimed in claim 1 above, wherein the subscriber is billed for a data service based upon an elapsed time for a duration of the subscriber'"'"'s use of the wireless data network.

7. A cellular network comprising:

means for establishing a call between a subscriber unit and a base station over a cellular network using a voice transmission protocol;

means for handing off the call from the cellular network to the wireless data network upon receiving a data designation from a data originator; and

means for transmitting user data over the wireless data network; and

means for handing off the call back to the voice cellular network upon the completion of the transmitting of user data over the wireless data network.

8. The cellular network of claim 7, where the wireless data network is available for voice transmission when no data traffic is present.