Method and system for enhanced data transmission in a cellular telephone system

• US 5,260,989 A
• Filed: 05/21/1992
• Issued: 11/09/1993
• Est. Priority Date: 05/21/1992
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Moore, Victor S., Jenness, Robert V.
• Primary Examiner(s): Ng, Jin F.
• Assistant Examiner(s): Bost, Dwayne D.
• Application Number:
  US07/887,441
• Time in Patent Office: 537 Days
• Field of Search: 379/59, 370/60, 370/94.1, 370/94.2, 370/110.4, 370/111, 370/118, 455/33.1, 455/34.1
• US Class Current: 370/277
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and system for enhanced data transmission within a cellular telephone system having multiple assigned voice channels separated by adjacent buffer voice channels. A data processing terminal is utilized to divide the data stream into multiple relatively short data packets which are then sequentially transmitted within alternate adjacent buffer voice channels. By switching from one adjacent buffer voice channel to a subsequent adjacent buffer voice channel, in a predetermined and repetitive order, as each data packet is transmitted, the amount of interference experienced in any one assigned voice channel is minimized. Synchronization between adjacent data packets may be achieved by either utilizing adjacent buffer voice channels in a predetermined and repetitive order or by concatenating an indication of the next buffer voice channel utilized with each data packet. A synchronization packet may also be included with each data packet to permit synchronization between adjacent data packets at the receiver.

Claims

1. A method for enhanced data stream transmission within a cellular telephone system having a plurality of assigned voice channels separated by adjacent buffer voice channels, said method comprising the steps of:

dividing a data stream into a plurality of relatively short data packets; and

sequentially transmitting individual ones of said plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels throughout said cellular telephone system.

2. The method for enhanced data stream transmission within a cellular telephone system according to claim 1, further including the step of concatenating a synchronization packet with each of said plurality of relatively short data packets.

3. The method for enhanced data stream transmission within a cellular telephone system according to claim 1, further including the step of concatenating an identification of an adjacent buffer voice channel containing a subsequent one of said plurality of relatively short data packets with each of said plurality of relatively short data packets.

4. The method for enhanced data stream transmission within a cellular telephone system according to claim 1, wherein said step of sequentially transmitting individual ones of said plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels comprises the step of sequentially transmitting individual ones of said plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels in a predetermined and repetitive order throughout said cellular telephone system.

5. A data processing system for data stream transmission within a cellular telephone system having a plurality of assigned voice channels separated by adjacent buffer voice channels, said data processing system comprising:

processor means for dividing a data stream into a plurality of relatively short data packets; and

controllable transmitter means coupled to said processor means for sequentially transmitting individual ones of said plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels throughout said cellular telephone system.

6. The data processing system for data stream transmission within a cellular telephone system according to claim 5, wherein said processor means further includes means for concatenating a synchronization packet with each of said plurality of relatively short data packets.

7. The data processing system for data stream transmission within a cellular telephone system according to claim 5, wherein said processor means further includes means for concatenating an identification of an adjacent buffer voice channel containing a subsequent one of said plurality of relatively short data packets with each of said plurality of relatively short data packets.

8. The data processing system for data stream transmission within a cellular telephone system according to claim 5, wherein said controllable transmitter means coupled to said processor means for sequentially transmitting individual ones of said plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels in a predetermined and repetitive order throughout said cellular telephone system.

9. The data processing system for data stream transmission within a cellular telephone system according to claim 5, further including controllable receiver means coupled to said processor means for sequentially receiving individual ones of a second plurality of relatively short data packets within alternate ones of said adjacent buffer voice channels throughout said cellular telephone system.

10. The data processing system for data stream transmission within a cellular telephone system according to claim 5, wherein said processor means comprises a portable battery powered data processing terminal.

11. The data processing system for data stream transmission within a cellular telephone system according to claim 10, wherein said controllable transmitter means and said controllable receiver means comprise a cellular telephone transceiver coupled to said portable battery powered data processing terminal.