Concentrator 20
United States Patent (9. 11 Patent Number: 4,789,983 Acampora et al. (45) Date of Patent: Dec. 6, 1988 (54) WIRELESS NETWORK FOR WIDEBAND Acampora, IEEE Jrnl on SAC, vol. SAC-1, Jan. 1983, NDOOR COMMUNICATIONS pp. 133-142. Acampora et al., IEEE Communications Magazine, "75) Inventors: Anthony Acampora, Freehold; Jack vol. 22, No. 8, Aug. 1984, pp. 12-21. H. Winters, Middletown, both of Mednick, Globecom '85, New Orleans, La., vol. 1, pp. N.J. 15.2.1 to 15.2.6. 73) Assignee: American Telephone and Telegraph Yen et al., Globecom '85, New Orleans, La., vol. 3, pp. Co., AT&T Bell Laboratories, 39.1.1 to 39.14. Murray Hill, N.J. Primary Examiner-Douglas W. Olms (21) Appl. No.: 22,255 Assistant Examiner-Melvin Marcelo Attorney, Agent, or Firm-Erwin W. Pfeifle (22 Filed: Mar. 5, 1987 57 ABSTRACT 51) Int. Cl'................................................ H04J 3/14 The present invention relates to a wideband communi 52 U.S.C. ......................................... 370/96; 370/84 cation network using wireless radio transmissions either 58) Field of Search ..................... 370/94, 95, 96, 109, on a stand-alone basis or to supplement a hard-wired 370/29, 13.1, 17, 97, 84; 379/58, 61, 63; 371/5 network. The exemplary network comprises (a) a plu rality of transceivers associated with separate users of (56) References Cited the network; (b) optionally at least one concentrator U.S. PATENT DOCUMENTS associated with certain separate subgroups of wireless 4,251,865 2/1981 Moore et al. ......................... 370/96 and possibly hard-wired transceivers for providing du 4,301,533 11/1981 Acampora et al.
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