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

1991-07-09

1993-03-16

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 60, 370 953, 379 58, 379 59, 379 60, 455 331, 455 332, 455 334, H04J 302

Patent

active

051950901

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 and 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: 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: 4797947 (1989-01-01), Labedz
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.
T. H. Murray "The Evolution of DDS Networks: Part I", Telecommunications, Feb. 1989, pp. 39-47.
Bell Labs News, Feb. 19, 1991, pp. 1, 4-7.
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.
"New Capabilities of the Definity Generic 2 Switch," Definity.TM. 75/85 Communications System, 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.

Affiliated with

Also associated with

Rating

Wireless access telephone-to-telephone network interface archite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wireless access telephone-to-telephone network interface archite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless access telephone-to-telephone network interface archite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-356210