Upstream Data Scrambler 1DOCSIS 31 section 74523 b seed specified by CMTS on an Upstream Channel Descriptoreed loaded at beginning of grantRecommend for 8023bnUse D31 polynomial X 1 see D3 ID: 610567
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Bit Scrambler for 802.3bnLeo Montreuil, Broadcom��1 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA Upstream Data Scrambler 1DOCSIS 3.1 (section 7.4.5):23 b seed specified by CMTS on an Upstream Channel Descriptoreed loaded at beginning of grantRecommend for 802.3bn:Use D3.1 polynomial X+ 1 (see D3.1 Figure 74)Default Seed = 4732BA h. Initialized at beginning of grant.Seed can be made programmable. Note: DS PLC scrambler use the same seed and it is nonprogrammable.��2 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA Upstream Data Scrambler 2 Seed load Delay Element 1Delay Element 2Delay Element 3Delay Element 18Delay Element 22Delay Element 23 Randomizerdata input Randomizerdata output XORXORSEEDLSBSEEDMSB ��IEEE P802.3bn March 2014 Norfolk, VA Upstream PLC ScramblerDOCSIS 3.1:No Upstream PLCRecommend for 802.3bn:Use polynomial 1 (slide 34)Default Seed = 4732BA h. Initialized at beginning of grant.��4 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA Downstream Data ScramblerDOCSIS 3.1 (section 7.5.5.3):Use GF[2] polynomial to scramble symbols, allowing descrambling per profile.Recommend for 802.3bn:Downstream is broadcast (no profile). Use a bit scramblerUse polynomial X1 (slide 3Default Seed = 4732BA h. Initialized on first codewordof Downstream frame��5 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA Downstream PLC ScramblerDOCSIS 3.1:Use GF[12] polynomial to scramble symbolsRecommend for 802.3bn:Use polynomial 1 (slide 34)Default Seed = 4732BA h. Initialized at start of Downstream frame.��6 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA Proposed MotionMove toAdopt and incorporate in the draft the bit scrambler recommendation on pages 2, 3 and 4 of montreuil_3bn_01a_0514.pdf for the upstream PCS MAC data path function and PLC. The seed shall have a default value and may also be set via the PHY LinkAdopt and incorporate in the draft the bit scrambler recommendation on pages 5 and montreuil_3bn_01a_0514.pdf for the downstream PCS MAC data path function and PLC. The seed shall have a default value and may also be set via the PHY LinkMoved:Seconded��7 &#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;&#x/BBo;&#xx [2;U.1;ͥ ;.4;! 4;s.6;थ ;2.6;s ];&#x/Sub;&#xtype;&#x /Fo;&#xoter;&#x /Ty;&#xpe /;&#xPagi;&#xnati;&#xon 0;IEEE P802.3bn March 2014 Norfolk, VA