The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2001
Filed:
Nov. 26, 1997
Jastinder S. Jawanda, Plano, TX (US);
Nortel Networks Limited, Montreal, CA;
Abstract
A unique byte is used to bookend commands and data for the purpose of allowing inband signalling and command communication between the IWF and the BSC portions of a mobile communication system having DS,maximum data rate transfer capability per data channel. The receipt of two consecutive ones of the unique bytes indicates that the next 2 bytes will be a command. The receipt of 3 consecutive ones of the unique bytes indicates the next byte will be data. This inband signalling and data transfer allows the IWF functionality to be remote from the main switch used by a given BSC. The CDMA system uses the inband signals to pass a plurality of data packets in parallel on DS,capacity channel links through the MTX in a half-duplex burst whenever a data buffer within the IWF or a connected high data transfer rate mobile station is filled to a given level. This burst process may operate on a time multiplex basis with low speed data transfers using the same DS,links to communicate with the IWF. To simplify the design of the burst process mechanism as concerns the bit robbing occurring in the least significant bit position of each DS,channel every 6th frame on DS,communication lines linking the BSC and the MTX, only the 7 most significant bit positions of a data byte are used in the data transmitted between a IWF entity and the SBS portion of a mobile network.