[54] SYSTEM AND METHOD FOR PACKET DATA COMMUNICATION
[75] Inventors: James William Bishop, Jr., Chandler;
Keith Andrew Olds, Mesa; Peter
Joseph Armbruster, Tempe; Aswath
Rao, Chandler, all of Ariz.
[73] Assignee: Motorola, Inc., Schaumburg, 111.
[ * ] Notice: This patent issued on a continued prosecution application filed under 37 CFR 1.53(d), and is subject to the twenty year patent term provisions of 35 U.S.C. 154(a)(2).
[21] Appl. No.: 08/752,985 [22] Filed: Nov. 21, 1996
[51] Int. CI. H04B 7 212
[52] U.S. CI 370/348; 370/443
[58] Field of Search 370/229, 230,
370/231, 232, 233, 234, 235, 316, 321, 329, 439, 458, 462, 348, 349, 473, 449,
347, 443
[56] References Cited
U.S. PATENT DOCUMENTS
5,179,556 1/1993 Turner 370/233
5,448,559 9/1995 Hayter 370/398
5,463,620 10/1995 Sriram 370/412
5,594,738 1/1997 Crisler et al 370/347
5,636,212 6/1997 Ikeda 370/233
FOREIGN PATENT DOCUMENTS
2270815 3/1994 United Kingdom .
2278976 12/1994 United Kingdom .
9217957 10/1992 WIPO .
Primary Examiner—Chau Nguyen
Assistant Examiner—Soon-Dong Hyun
Attorney, Agent, or Firm—Harold C. McGurk; Dana B.
LeMoine; Timothy J. Lorenz
[57] ABSTRACT
A packet data communication system (10) where multiple users (87) can access the same channel (22) to maximize an efficiency of the communication system (10). Each channel (22) is divided into time slots. Each time slot is allocated to a user based on the user's request (303) for time slots and the availability of time slots. If time slots are available, then the system (10) will inform the user (87) and allocate the time slot to the user (87,305). If there are no available time slots, then the system (10) will inform the user (87) that no time slots are available and access to the system's channel is denied. The user (87) will continue to request access (303) to the system (10) as long as the user has data packets to send.
10 Claims, 4 Drawing Sheets
