QUEUED COMMUNITY REPEATER
MOBILE
Inventors: Paul F. Smith, Fort Worth; Eric
Schorman, Bedford; Timothy M.
Burke, Fort Worth; Charles N. Lynk,
Jr., Bedford, all of Tex.
Assignee: Motorola, Inc., Schaumburg, 111.
Appl. No.: 564,855
Filed: Dec. 22, 1983
Int. Q.4 H04B 1/00; H04B 1/40
U.S. CI 455/54; 455/17;
455/34; 455/78; 340/825.5
Field of Search 455/7, 11, 17, 18, 33,
455/34, 53, 54, 58, 78; 370/85, 89, 93, 95; 340/825.5, 825.51, 825.52; 179/2 EB
References Cited
U.S. PATENT DOCUMENTS
3,745,462 7/1973 Trimble .
3,746,991 7/1973 Gautney .
3,866,175 2/1975 Seifert, Jr. et al 340/825.52
3,955,140 5/1976 Stephens et al. .
4,012,597 3/1977 Lynk, Jr. et al. .
4,013,959 3/1977 Patterson .
4,135,156 1/1979 Sanders, Jr. et al. .
4,247,947 1/1981 Miyamoto .
4,332,027 5/1982 Malcolm et al 455/58
4,399,555 8/1983 MacDonald et al. .
4.414,661 11/1983 Karlstrom 370/95
4,477,809 10/1984 Bose 455/54
FOREIGN PATENT DOCUMENTS 2063011 5/1981 United Kingdom .
Primary Examiner—Jin F. Ng
Attorney, Agent, or Firm—Donald B. Southard;
Raymond A. Jenski
[57] ABSTRACT
A remote unit which transmits and receives messages within a fleet of remote units on a single communications channel shared by a plurality of remote unit fleets is disclosed. Access to the channel is regulated by a central control station which transmits control signals on the channel. To obtain service, a remote unit transmits a request synchronized by one of the control signals. Upon receiving a grant of service from the central control station, the remote unit may transmit a message to its fleet. At the conclusion of the message, an end-oftransmission condition is indicated by the remote unit.
8 Claims, 19 Drawing Figures
