---------------------------------------------------------------------- Message-ID: <2698b9a3-5113-5e55-7f51-f9107e41d282@jacksons.net> Date: 13 Sep 2020 15:09:02 -0400 From: "Chuck Jackson" <clj@jacksons.net> Subject: LTE is not CDMA On 9/12/2020 5:30 AM, telecom-request@telecom-digest.org wrote: > (LTE is also Code-Division Multiple-Access but isn't "CDMA" brand > CDMA) No. LTE is OFDMA downlink; SC-FDMA uplink. In some sense it is the dual of CDMA - CDMA transmits info in very short elements or bursts - OFDM (and OFDMA) transmits in very long bursts. In each case, the signal format allows a receiver to eliminate (or at least substantially reduce) the effects of echos or ghosts of radio signals (multipath). Both OFDM and CDMA have been around for about 60-70 years. IIRC, CDMA was first developed to provide protection against jamming and OFDM was developed to protect against multipath on HF radio circuits. See https://www.artizanetworks.com/resources/tutorials/what_lte.html Chuck -- Charles L. Jackson clj@jacksons.net +1 301 656 8716 ------------------------------ Message-ID: <3a6e1018-b306-0806-3d9c-265184480414@outlook.com> Date: 12 Sep 2020 22:30:47 -0400 From: "Bill Horne" <malQassimRilaMtion@gmail.com> Subject: AT&T Accused of Digital Redlining in Detroit In Detroit, AT&T is facing a formal FCC complaint accusing the telecom giant of deploying discriminatory "digital redlining" tactics. This is the second such complaint filed against the telecommunications giant since the first of the year. http://thehill.com/policy/technology/352267-att-hit-with-second-complaint-of-discrimination-against-low-income?mc_cid=9646f90f27&mc_eid=e00c29a42c https://muninetworks.org/content/att-accused-digital-redlining-detroit#:~:text=In%20Detroit%2C%20AT%26T%20is%20facing,the%20first%20of%20the%20year. -- Bill Horne (Remove QRM from my email address to write to me directly) ------------------------------ Message-ID: <53588a5d-546f-9b47-cb1b-bf33f55fa6d3@billhorne.com> Date: 12 Sep 2020 22:19:26 -0400 From: Bill Horne <telecomdigestsubmissions@remove-this.telecom-digest.org> Subject: Communication outages once again follow power shut-offs in Sonoma County By Will Schmitt Ian Sewell wants some accountability. Sewell, a software manager who lives in Santa Rosa's Skyhawk neighborhood, can't work without internet access. So when PG&E shut off the power to tens of thousands of people in Sonoma County this week, citing forecasts calling for dangerous fire weather, Sewell was sidelined from his job. https://www.pressdemocrat.com/article/news/communication-outages-once-again-follow-power-shut-offs-in-sonoma-county/ -- Bill Horne ------------------------------ Message-ID: <cbd2d1c0-a32b-04d0-be76-42936cc84eb4@outlook.com> Date: 12 Sep 2020 22:34:10 -0400 From: "Bill Horne" <malQassimRilaMtion@gmail.com> Subject: Woman assaults NYC Verizon employee after refusing to wear mask, calls another employee a "fat ugly n----r" before storming out Woman assaults NYC Verizon employee after refusing to wear mask, calls another employee a "fat ugly n----r" before storming out An irate woman called one worker in a Manhattan Verizon store a "fat ugly n----r" and hurled a trash can at another - all because they asked her to wear a mask, shocking video shared on social media shows. https://www.nydailynews.com/new-york/nyc-crime/ny-verizon-woman-assaults-employee-racist-slur-video-20200912-phlwajwddzakpahsn4j753v7xi-story.html -- Bill Horne (Remove QRM from my email address to write to me directly) ------------------------------ ********************************************* End of telecom Digest Tue, 15 Sep 2020