From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yb1-xb2e.google.com (mail-yb1-xb2e.google.com [IPv6:2607:f8b0:4864:20::b2e]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id EEDCB3B29E for ; Tue, 12 Apr 2022 18:30:47 -0400 (EDT) Received: by mail-yb1-xb2e.google.com with SMTP id z33so587590ybh.5 for ; Tue, 12 Apr 2022 15:30:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aterlo.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ylNvNayaVUXuoUIDZFz5HNUc5KEeK15StgE7So+t6bo=; b=kMrxFKd2Sfu+x+9cVLXBBpAGPJcV212o0gGfMeKSnq4kYm9t2UVxs2f2SXarJvdC/E PT5yRWaHYZYb26RxThSXS+ad/styBjYXkmU+RfPxiaBAzhzpUKLU3AuI7lbeAxEIIOdI jktNciDr2u7FwcHg4TMAlbeGhcZpc3eMLC+jw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=ylNvNayaVUXuoUIDZFz5HNUc5KEeK15StgE7So+t6bo=; b=f4I8ehmKQ9MEEwDa0nWXWVc5kSmL43iTwpHHcOxXS5J80kDZvijkGDlqus03BeKuFw jaHxpycyIDI1jdGjGjgACMp4JYwI1bCmMjgljvZq9UJ314x2/VCPGS2Xs0KZ+pJ7XAmh fV9aU5bBaV18q3M+56LMh+CXMZj/q/JrgWwBImQwkwVYmNpTPCGdd/qpjLbJEemw/ri1 v1aGHdoZOfrVaqQQEiDq6CmkOdznB3fQk8hyHXFG7XJ16f+FYkzUnk40FaFBi3iWjXl8 yuboLWv0jcKu/GaEwyhmTKqfFqAeNWmxT/0qw0VYYexSF2odhsJrqvKk2DciOwM/du6P t/7g== X-Gm-Message-State: AOAM530LgYf+XzOYB5ElJNPC1dn5CEaQKhzdTjrcDP27cn31zmmw1N/v wh9ATdVnQKIN2dQGH983GhjTM9+v9ZoOnQAUoolofA== X-Google-Smtp-Source: ABdhPJxMxT8eTlrTiN2oGOW3JL+I3VLMRPq9GPIMuLqzCfG7ttECoJKXPQqdFr2QSyfTNdHlg/Y8+C4flYTxqvAZ1mU= X-Received: by 2002:a5b:98f:0:b0:641:54c7:36e8 with SMTP id c15-20020a5b098f000000b0064154c736e8mr9222691ybq.285.1649802647374; Tue, 12 Apr 2022 15:30:47 -0700 (PDT) MIME-Version: 1.0 References: <168F6AAF-7953-4498-913A-A322D184FF2B@falco.ca> <67d53857-4b4d-4604-be1c-e3972477bc75@Spark> In-Reply-To: <67d53857-4b4d-4604-be1c-e3972477bc75@Spark> From: Jeremy Austin Date: Tue, 12 Apr 2022 14:30:36 -0800 Message-ID: To: Mike Puchol Cc: David Lang , starlink@lists.bufferbloat.net, Dave Collier-Brown Content-Type: multipart/alternative; boundary="000000000000bf1e3d05dc7c9c10" Subject: Re: [Starlink] SpaceX ordered to explain pricing strategy 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: Tue, 12 Apr 2022 22:30:48 -0000 --000000000000bf1e3d05dc7c9c10 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, Apr 12, 2022 at 1:25 PM Mike Puchol wrote: > The frequency re-use is a factor of steering angle. Take these two spot > beams, and the cells that they cover. The left side is a beam almost at > nadir, the right side is close to maximum steering angle. Any hexagonal > cell inside the beam=E2=80=99s footprint cannot be covered by another bea= m (from > same or other satellite), as the overlap would violate the restrictions o= n > Starlink=E2=80=99s license: > I don't disagree with the description of this type of spatial reuse. It will be interesting to see how nonlinear the capacity growth due to tighter angles is, however, and whether it's more like a 4x increase or an 8x increase. The question of whether they can achieve their goals without additional reuse (for example, covering a given hex with more than one channel) is open. Fun times. --=20 -- Jeremy Austin Sr. Product Manager Preseem | Aterlo Networks preseem.com Book a Call: https://app.hubspot.com/meetings/jeremy548 Phone: 1-833-733-7336 x718 Email: jeremy@preseem.com Stay Connected with Newsletters & More: *https://preseem.com/stay-connected/* --000000000000bf1e3d05dc7c9c10 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


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On Tue, Apr 12, 2022 at 1:25 PM Mike = Puchol <mike@starlink.sx> wro= te:
The frequency re-use is a factor of steering angle. Take = these two spot beams, and the cells that they cover. The left side is a bea= m almost at nadir, the right side is close to maximum steering angle. Any h= exagonal cell inside the beam=E2=80=99s footprint cannot be covered by anot= her beam (from same or other satellite), as the overlap would violate the r= estrictions on Starlink=E2=80=99s license:

=C2=A0I don't disagree with the description of this t= ype of spatial reuse.=C2=A0 It will be interesting to see how nonlinear the= capacity growth=C2=A0due to tighter angles=C2=A0is, however, and whether i= t's more like a 4x increase or an 8x increase.

The question of whether they can achieve their goals without additional re= use (for example, covering a given hex with more than one channel) is open.= Fun times.


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Jeremy Au= stin
Sr. Product Manager
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