Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1995-11-29
1998-10-06
Chin, Wellington
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
348 13, 348 14, 370337, 370347, 455403, H04Q 700
Patent
active
058188258
ABSTRACT:
A method and apparatus in a communications system (100) for providing communications units (134) access to the communications system (100). The communications system (100) includes a cable distribution network (106) with a base communications unit (102) and a number of downstream communications units (134) all connected to the cable distribution network (106). A plurality of channels are used to transmit data between the base communications unit (102) and the downstream communications units (134). A first set of channels are used primarily for access to the communications system (100) and a second set of channels are used for transmitting data within the communications system (100) after access to the communications system (100) has been gained. The base communications unit (102) sends a first type of data transmission including an identification of access channels used for requesting access to the communications system (100). The base communications unit (102) assigns channels within the second set of channels response to receiving a request for access to the communications system (100) on the first set of channels. A mechanism also is provided for handling collisions in transmissions between the downstream communications units (134) to the base communications unit (102).
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patent: 4785450 (1988-11-01), Bolgiano et al.
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patent: 5640196 (1997-06-01), Behrens et al.
Generic Criteria for Version 0.1 Wireless Access Communications Systems (WACS) published by Bellcore, 1993 (TR-INS-001313), specifically Sections 6.4.5 and 6.5.2.
Personal Access Communications System Air Interface Standard J-STD-014 (PACS) published by Technical Ad Hoc Group 3 of the T1/TIA Joint Technical Committee, specifically Sections 6.4.5 and 6.5.2.
Burke Timothy M.
Corrigan Richard
Mueller Bruce D.
Carman Melissa Kay
Chin Wellington
Motorola Inc.
Wood J. Ray
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