Methods and apparatus of enhancing performance in wireless...

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S452200, C455S422100, C455S553100, C455S464000, C370S329000, C370S341000, C370S431000

Reexamination Certificate

active

07142864

ABSTRACT:
Methods and apparatus for supporting and using multiple communications channels corresponding to different transmit technologies and/or access technologies in parallel within a cell of a wireless communications system are described. Mobile nodes support multiple technologies and can switch between the technology being used at a particular point in time, e.g., from a first channel corresponding to a first technology to a second channel corresponding to a different technology which provides better transmission characteristics, e.g., a better perceived channel quality. Mobiles maintain at least two sets of channel quality information at any one point in time. Mobiles select the better channel and communicate the channel selection to the base station or communicate channel quality information for multiple channels to the basestation and allow the base station to select the channel corresponding to the technology providing the better conditions for the mobile. Different mobiles in the same cell may support different technologies.

REFERENCES:
patent: 6594241 (2003-07-01), Malmlof
patent: 6650655 (2003-11-01), Alvesalo et al.
patent: 6804521 (2004-10-01), Tong et al.
patent: 6889050 (2005-05-01), Willars et al.
patent: 6895255 (2005-05-01), Bridgelall
patent: 6944460 (2005-09-01), Haartsen
patent: 6947750 (2005-09-01), Kakani et al.
patent: 2003/0086371 (2003-05-01), Walton et al.
patent: 2003/0153273 (2003-08-01), Ebert et al.
patent: 2003/0190897 (2003-10-01), Lei et al.
A.F. Naguib, V. Tarokh, N.Seshadri, A.R. Calderbank, “A Space-Time Modem for High-Data-Rate Wireless Communications”, IEEE Journal on Selected Areas in Communications, vol. 16, No. 8, Oct. 1998, pp. 1459-1478.
S. Alamouti, “A Simple Transmit Diversity Technique for Wireless Communications”, IEEE Journal on Selected Areas in Communications, vol. 16, No. 8, Oct. 1998, pp. 1451-1458.
PCT International Search Report dated Dec. 1, 2004 for International Application No. PCT/US2004/012539, which was filed on Apr. 23, 2004.

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

Methods and apparatus of enhancing performance in wireless... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus of enhancing performance in wireless..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus of enhancing performance in wireless... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3700432

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