Synchronized plural channels for time division duplexing

Multiplex communications – Communication over free space – Combining or distributing information via time channels

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S350000

Reexamination Certificate

active

07068639

ABSTRACT:
A method of managing TDD across plural channels. In the method, frames are synchronized across the plural channels so that upstream frames and downstream frames coincide across the plural channels. Preferable, one channel is assigned to each of plural CPEs. Each CPE receives MAP messages on its assigned channel. A base station controller preferably generates the MAP messages. The MAP messages instruct the CPEs to switch channels so as to receive data bursts. The base station controller preferably includes a centralized scheduler that allocates channels and slots in those channels to the CPEs for receipt of the data bursts. Also, a method of receiving TDD messages. According to the method, CPEs switch channels based on received media access protocol messages so as to receive data bursts on plural channels. The channel to which a CPE switches need not be the same channel as the one on which the CPE receives its MAP messages. Additionally, systems, base stations, CPEs, and/or software that utilizes and/or implements these methods.

REFERENCES:
patent: 5082061 (1992-01-01), Dollison
patent: 5657325 (1997-08-01), Lou et al.
patent: 6016311 (2000-01-01), Gilbert et al.
patent: 6108314 (2000-08-01), Jones et al.
patent: 6151312 (2000-11-01), Evans et al.
patent: 6400699 (2002-06-01), Airy et al.
patent: 6683866 (2004-01-01), Stanwood et al.
patent: 2001/0038620 (2001-11-01), Stanwood et al.
patent: 197 28 469 (1999-07-01), None
patent: WO 97/17768 (1997-05-01), None
patent: WO 98/59523 (1998-12-01), None
patent: WO 98/59523 (1998-12-01), None
patent: WO 99/01959 (1999-01-01), None
patent: WO 99/14975 (1999-03-01), None
patent: WO 99/14975 (1999-03-01), None
patent: WO 99/23844 (1999-05-01), None
patent: WO 99/23844 (1999-05-01), None
patent: WO 99/44341 (1999-09-01), None
patent: WO 01/50633 (2001-07-01), None
patent: WO 01/50669 (2001-07-01), None
Esmailzadeh et al, Quasi-Synchronous Time Division Duplex CDMA, IEEE, pp. 1637-1641, 1994.
IEEE 802.16 Broadband Wireless Access Working Group, MAC Proposal for IEEE 802.16.1, pp. 1-92, Jan. 2000.
Seyhan Civanlar and Bharat T. Doshi. “Self-Healing in Wideband Packet Networks”. IEEE Network vol. 4 (Jan. 1990), No. 1, New York, pp. 35-39. XP 000113853.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Synchronized plural channels for time division duplexing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synchronized plural channels for time division duplexing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronized plural channels for time division duplexing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3707422

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.