From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.lang.hm (syn-045-059-245-186.biz.spectrum.com [45.59.245.186]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1392F3CB37 for ; Mon, 3 Jun 2024 18:41:35 -0400 (EDT) Received: from dlang-mobile (unknown [10.2.3.133]) by mail.lang.hm (Postfix) with ESMTP id 08FB21D3A46; Mon, 3 Jun 2024 15:41:34 -0700 (PDT) Date: Mon, 3 Jun 2024 15:41:33 -0700 (PDT) From: David Lang To: Eugene Y Chang cc: David Lang , Frantisek Borsik , Dave Taht via Starlink In-Reply-To: <32AD770E-336E-4CF4-8B1B-8AE7353981CC@ieee.org> Message-ID: <030p06nr-4169-9341-nn73-4n06nprp9863@ynat.uz> References: <32AD770E-336E-4CF4-8B1B-8AE7353981CC@ieee.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="228850167-1073682746-1717454494=:4640" Subject: Re: [Starlink] SpaceX/Starlink says it's ready for a fall satellite-to-cell service with T-Mobile X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Jun 2024 22:41:35 -0000 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --228850167-1073682746-1717454494=:4640 Content-Type: text/plain; format=flowed; charset=UTF-8 Content-Transfer-Encoding: 8BIT Eugene Y Chang wrote: > I expect low data rate because the distance will fall back to a lower coding > rate. I think it's going to be more a matter of very large cells, so many people sharing the available bandwidth > I observe a difference in my phone’s batter life between urban and rural usage. I expect the battery life to be significantly reduced with Starlink. > And yes… if the phone isn’t communicating then the battery life isn’t drawn down much… In my experience, a phone that's trying to find a tower uses more power than one that has a tower, but is otherwise idle > But users with high screen times will have to change their habits. > — avoid receiving text messages (not under the user’s control) > — don’t receive email pushes > — stop all the social media updates, messages, and likes. > — turn off the apps > — only use the phone for emergencies. > > Who are the intended users? emergancy communication in areas that currently have zero service, primarily text messages, then voice, then low bandwidth data. David Lang > Gene > ---------------------------------------------- > Eugene Chang > IEEE Life Senior Member > IEEE Communications Society, Computer Society, & Signal Processing Society, > Hawaii Chapter Chair > IEEE Life Member Affinity Group Hawaii Chair > IEEE Entrepreneurship, Mentor > eugene.chang@ieee.org > m 781-799-0233 (in Honolulu) > > > >> On Jun 3, 2024, at 11:16 AM, David Lang wrote: >> >> This is a fallback that will only be if there is no other coverage, and will be a poor data rate. >> >> I would expect that the impact to the phone battery would be less than the phone continually searching for a tower >> >> Also, SpaceX has pushed back, according to them this isn't observed interference with their signals, instead they reconfigured a satellite to the direct-to-phone frequencies and were able to detect them >> >> we'll see what the real story is. >> >> On Mon, 3 Jun 2024, Eugene Y Chang via Starlink wrote: >> >>> Date: Mon, 3 Jun 2024 10:47:32 -1000 >>> From: Eugene Y Chang via Starlink > >>> Reply-To: Eugene Y Chang > >>> To: Frantisek Borsik > >>> Cc: Dave Taht via Starlink > >>> Subject: Re: [Starlink] SpaceX/Starlink says it's ready for a fall >>> satellite-to-cell service with T-Mobile >>> I found this line in the article very interesting: The larger 2nd generation SpaceX satellites can connect to the majority of T-Mobile’s 4G and 5G phones over its 1900 MHz spectrum. >>> >>> It is exciting a subscriber does not need to buy a new phone. >>> What is the expected impact to the phone’s battery life? >>> Any speculations? >>> >>> Gene >>> ---------------------------------------------- >>> Eugene Chang >>> eugene.chang@ieee.org >>> o 781-799-0233 >>> >>> >>> >>> >>>> On Jun 3, 2024, at 8:08 AM, Frantisek Borsik via Starlink wrote: >>>> >>>> SpaceX & T-Mobile intend to launch direct-to-device (D2D) satellite servicethis fall >>>> An analyst told us that will give them an 18- to 24-month lead over some rivals >>>> AT&T & Verizon are still backing AST SpaceMobile as an alternative >>>> >>>> https://www.fierce-network.com/wireless/space-x-says-its-ready-fall-direct-satellite-cell-service-t-mobile > >>>> >>>> All the best, >>>> >>>> Frank >>>> >>>> Frantisek (Frank) Borsik >>>> >>>> >>>> >>>> https://www.linkedin.com/in/frantisekborsik > >>>> Signal, Telegram, WhatsApp: +421919416714 >>>> >>>> iMessage, mobile: +420775230885 >>>> >>>> Skype: casioa5302ca >>>> >>>> frantisek.borsik@gmail.com >_______________________________________________ >>>> Starlink mailing list >>>> Starlink@lists.bufferbloat.net >>>> https://lists.bufferbloat.net/listinfo/starlink >>> >> _______________________________________________ >> Starlink mailing list >> Starlink@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/starlink > --228850167-1073682746-1717454494=:4640--