No they weren’t. NTT DoCoMo and Ericsson did the heavy lifting on it. Qualcomm owns patents on OFDM that they received when they bought Flarion in 2006. They saw an ability to corner the patent market like they did for CDMA and took it.
OFDM was invented at Bell Labs in the early 1960s.
Anyway, one of their most litigated patents is as follows.
>In a data communication system capable of
variable rate transmission, high rate packet data trans-
mission improves utilization of the forward link and de-
creases the transmission delay. Data transmission on
the forward link is time multiplexed and the base station
transmits at the highest data rate supported by the for-
ward link at each time slot to one mobile station. The
data rate is determined by the largest C/I measurement
of the forward link signals as measured at the mobile
station. Upon determination of a data packet received
in error, the mobile station transmits a NACK message
back to the base station. The NACK message results in
retransmission of the data packet received in error. The
data packets can be transmitted out of sequence by the
use of sequence number to identify each data unit within
the data packets.
That's the entire thing. No math, no "show your work". Just that paragraph.
No that is not the entire thing. That's just the abstract. The patent makes 63 claims. Claims are the only part of the patent document that matters for litigation.
Having used both HP QC and Microsoft Team Foundation Server (the successor to VSS) for issue tracking, I have to say that Jira is better than TFS is better than QC. The big problem I ran into is that many teams had different fields and TFS and QC showed them all. This is a huge problem when there are well over 100 teams.
