Gus, excellent source.
obviously the neopoint agreement does allow for use of certain IDC patents under 10mghz under certain conditions relative to a certain platform. however, 3g devices and applications will be necessarily licensed for a spreading range of 5mghz to 20mghz; and depending on the government allowance, some higher. it would not be practical for a licensee who wants to particpate in the third generation circus to make and sell products whose transmission capabilities were limited to 10mghz or less. asymmetrical and/or video signals will require a larger spread than 10mghz, most likely up to 15mghz especially on a downlink (where no retransmission is required). spreading of the signal is required for both uplink and downlink. asymmetrical traffic, especially on the downlink, may, in the future, comprise over 80% of all traffic given some inherent technical advantages of sending traffic in this manner (or as IMT2000 has proposed, if the shear amount of proposed asymmetric traffic results in a decrease in frequency utilizaiton, time division duplexing or TDD may become the REQUIRED method of future transmission for all multimedia services within microcells - and we know who owns nearly all applicable 3g TDD IPRs, don't we?). conceptually, a device that is limited to a spread of 10mghz or less realistically would not take advantage of the range of multi-media services made available for transmission on the dowlink. to call such a limited device "third generation" would be questionable. a spreading limited to under 10mghz also, i believe, limits the applicable applications to potential growth due to customer demands. nevertheless, this is a very complex technologically based subject which can not be adequately addressed by posting to this site. there are some who have made the case that IDC owns over half of all essential IPR for transmission in excess of a spread of 10mghz.
the IMT2000 platform is "requiring" that WCDMA 3g systems have the capability of demonstrating a wider spread than 10mghz in order to be compliant with the platform. |
