Multiplex communications – Wide area network – Packet switching
Patent
1990-12-06
1994-03-29
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
455 331, H04J 316
Patent
active
052991989
ABSTRACT:
A mobile telephone system multiplexes plural voice traffic channels on a single carrier using a TDMA protocol. The capacity of the mobile telephone system is increased by assigning voice traffic capacity, not on a conversation basis, but on a speech spurt basis. In order to avoid compromising the voice transmission capacity, control signals (for the allocation and deallocation of both forward and reverse traffic channels) are sent using multiple diversity, i.e. both time and frequency. In addition, to increase the number of available control channels, a control channel comprises a sub-divided portion of an otherwise equivalent voice traffic slot. For reverse allocation requests, which are transmitted over a contention access channel, power diversity is used in addition to time and frequency diversity.
REFERENCES:
patent: 4009344 (1977-02-01), Flemming
patent: 4009345 (1977-02-01), Flemming
patent: 4009346 (1977-02-01), Parker
patent: 4009347 (1977-02-01), Fleming
patent: 4128809 (1978-12-01), Kage
patent: 4253193 (1981-02-01), Kennard et al.
patent: 4419758 (1983-12-01), Dorey
patent: 4596024 (1986-06-01), Thomson
patent: 4616364 (1986-10-01), Lee
patent: 4621368 (1986-11-01), Onoe et al.
patent: 4782485 (1988-11-01), Gollub
patent: 4783780 (1988-11-01), Alexis
patent: 4809296 (1989-02-01), Braun et al.
patent: 4817089 (1989-03-01), Paneth et al.
patent: 5018136 (1991-05-01), Gollub
patent: 5088108 (1992-02-01), Uddenfeldt et al.
patent: 5121387 (1992-06-01), Gerhardt et al.
Al-Salihi et al., "The Application of Time Assignment Speech Interpolation (TASI) to the Radiophone Service", Colloquium on Radio System Organisation & Control, 1980, pp. 5/1-5/5.
Campanella, "Digital Speech Interpolation", COMSAT Technical Review, vol. 6, No. 1, Spring 1976, pp. 127-158.
Chien et al., "Cellular Access Network (CADN): Wireless Access to Networks of the Future", IEEE Communications Magazine, Jun. 1987, vol. 25, No. 6, pp. 22-31.
Choudhury et al., "Diversity ALOHA--A Random Access Scheme for Satellite Communications", IEEE Transactions on Communications, vol. COM-31, No. 3, Mar. 1983, pp. 450-457, Comments: Su et al., vol. COM-32, No. 10, Oct. 1984, pp. 1143-1145.
Cooper et al., "Cellular Mobile Technology: The Great Multiplier", IEEE Spectrum, Jun. 1983, pp. 30-37.
D'Avella et al., "An Adaptive MLSE Receiver for TDMA Digital Mobile Radio", IEEE Journal on Selected Areas in Communications, vol. 7, No. 1, Jan. 1989, pp. 122-129.
Everitt et al., "Performance Analysis of Cellular Mobile Communication Systems with Dynamic Channel Assignment", IEEE Journal on Selected Areas in Communications, vol. 7, No. 8, Oct. 1989, pp. 1172-1180.
Fisher, "Dual Mode Mobile Unit for Next Generation Digital Narrow Channel Cellular Telephone System", 38th IEEE Vehicular Technology Conference, 1988, pp. 543-547.
Goodman et al., "Packet Reservation Multiple Access for Local Wireless Communications", IEEE Transactions on Communications, vol. 37, No. 8, Aug. 1989, pp. 885-889.
Gupta et al., "Land Mobile Radio Systems--A Tutorial Exposition", IEEE Communications Magazine, Jun. 1985, vol. 23, No. 6, pp. 34-45.
Lee, "Cellular Operators Feel the Squeeze", Telephony, May 30, 1988, pp. 22-23.
Li, "Multiple Access Communications Networks", IEEE Communications Magazine, Jun. 1987, vol. 25, No. 6, pp. 41-48.
Mahmoud et al., "An Integrated Voice/Data System for VHF/UHF Mobile Radio", IEEE Journal on Selected Areas in Communications, vol. SAC-1, No. 6, Dec. 1983, pp. 1098-1111.
Nguyen et al., "Access Strategies for D-TASI Over Mobile Radio Chennels", IEEE Vehicular Technology Conference, 1986, pp. 311-318.
Riordon et al., "Demand Time-Assigned Speech Interpolation for Land Mobile Systems", International Conference on Mobile Radio Systems and Techniques, 1984, pp. 150-154.
Schoute, "Dynamic Frame Length ALOHA", IEEE Transactions on Communications, vol. COM-31, No. 4, Apr. 1983, pp. 565-568.
Sheikh et al., "Performance of Access Strategies for D-TASI Over Mobile Radio Fading Channels", Journal of the Institution of Electronic and Radio Engineers, vol. 57, No. 6 (Supplement), Nov./Dec. 1987, pp. S304-S310.
Uddenfeldt et al., "Digital Technologies in Cellular Radio", 38th IEEE Vehicular Technology Conference, 1988, pp. 516-519.
Yan, "Performance Analysis of Replication ALOHA for Fading Mobile Communications Channels", IEEE Transactions on Communications, vol. COM-34, No. 12, Dec. 1986, pp. 1256-1259.
Corrigan III John E.
Kay Stanley E.
Mehta Ashok
Parr Michael
Wendling Daniel
Denson-Low Wanda K.
Hom Shick
Hughes Aircraft Company
Lindeen III Gordon R.
Olms Douglas W.
LandOfFree
Method and apparatus for exploitation of voice inactivity to inc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for exploitation of voice inactivity to inc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for exploitation of voice inactivity to inc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-798212