Wireless access telephone-to-telephone network interface archite

Details Wireless access telephone-to-telephone network interface archite Wireless access telephone-to-telephone network interface archite

1992-10-29

1994-04-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 60, 370 601, 370 941, 370 942, 370 953, 370 851, 370 859, 379 59, 455 331, H04Q 702

Patent

active

053053087

ABSTRACT:
A wireless-access communications system, such as a CDMA cellular radio-telephone system (FIG. 2), comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base stations; 202) with each other and with the public telephone network (100). Traffic of individual calls is packetized, and packet-bearing frames (300 in FIG. 7) of a plurality of calls are then statistically multiplexed and frame-relayed through the network to yield the high capacity, efficiency, and speed of traffic transport and handoff required for a CDMA cellular system. At each call processing unit (264 in FIG. 5), individual calls are handled by individual service circuits (602 & 612) which perform speech-processing functions such as coding and decoding, tone insertion, and echo cancellation, and packet-to-circuit-switched-PCM traffic conversion. Processors (602) adapt call processing unit timing to compensate for asynchrony between cells and call processing units and variations in call path transmission delays. Cell-to-cell communications, fixed call path addressing, and packetized control message transfers ensure that the same service circuit handles a call through even multiple soft handoffs (FIGS. 27-29) and efficiently communicates simultaneously with all cells involved in the handoff without involvement of system control entities and negative effect on system call-handling capacity. Both coded (packet-switched) and uncoded (circuit-switched) radio-telephone traffic are accommodated side-by-side. Wherever possible, existing and proven technology and component units are used to achieve low cost and high reliability.

REFERENCES:
patent: 4314367 (1982-02-01), Bakka et al.
patent: 4456989 (1984-06-01), Johnson et al.
patent: 4494230 (1985-01-01), Turner
patent: 4535448 (1985-08-01), Baxter et al.
patent: 4562572 (1985-12-01), Goldman et al.
patent: 4599490 (1986-07-01), Cornell et al.
patent: 4617674 (1986-10-01), Mangulis et al.
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4680786 (1987-07-01), Baker et al.
patent: 4698839 (1987-10-01), DeVaney et al.
patent: 4726014 (1988-02-01), Goldman et al.
patent: 4742514 (1988-05-01), Goode et al.
patent: 4765753 (1988-08-01), Schmidt
patent: 4775998 (1988-11-01), Felix et al.
patent: 4797947 (1989-01-01), Labedz
patent: 4887265 (1989-12-01), Felix
patent: 4894822 (1990-01-01), Buhrke et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4975939 (1990-12-01), Sasaki
patent: 4977577 (1990-12-01), Arthur et al.
patent: 4984247 (1991-01-01), Kaufmann et al.
patent: 4989204 (1991-01-01), Shimizu et al.
patent: 5005171 (1991-04-01), Modisette, Jr. et al.
patent: 5018187 (1991-05-01), Marinho et al.
patent: 5022024 (1991-06-01), Paneth et al.
patent: 5062133 (1991-10-01), Melrose
patent: 5089954 (1992-02-01), Rago
patent: 5131024 (1992-07-01), Pugh et al.
patent: 5184347 (1993-02-01), Farwell et al.
patent: 5195091 (1993-03-01), Farwell et al.
"New Capabilities of the DEFINITY Generic 2 Switch", Definity.TM. 75/85 Communications Systems, Generic 2, Issue 1, (Feb. 1989), AT&T Information Systems, Doc. #555-104-401, pp. 2-6 to 2-15.
K. W. Strom, "On the Road with AUTOPLEX System 1000", AT&T Technology, vol. 3, No. 3, (1988), pp. 42-51.
W. J. Hardy et al., "New AUTOPLEX Cell Site Paves the Way for Digital Cellular Communications", AT&T Technology, vol. 5, No. 4, (1990), pp. 20-25.
N. S. Jayant et al., "Coding of Speech and Wideband Audio", AT&T Technical Journal, vol. 69, No. 5, (Sep./Oct. 1990), pp. 25-41.
P. Binney, "Signal-Processing Chip Boasts Design Breakthroughs", Bell Labs News, Apr. 15, 1991, p. 5.
"TDMA and FDMA: The Different Technologies Explained", Cordless Times, 1990, Issue 0, (Ericsson Radio Systems BV), pp. 10-11.
T. H. Murray, "The Evolution of DDS Neworks: Part I", Telecommunications, Feb. 1989, pp. 39-47.
Bell Labs News, Feb. 19, 1991, pp. 1, 4-7.
R. W. Henn, et al., AT&T Next Generation Digital Cellular Base Station Technology, XIII International Switching Symposium, Session C10, Paper #6, Proceedings, vol. VI, pp. 195-198.

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