IP Library › Granted Patent US 7,751,338
Granted Patent B2
US 7,751,338 · App. 10/729,179 · Granted Jul 6, 2010

Establishment of multiple upstream DOCSIS logical channels based upon performance

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Quick Facts
Patent No.
US 7,751,338
App. No.
10/729,179
Granted
Jul 6, 2010
Kind
B2
Abstract

A process for grouping cable modems by type/modulation profile and/or throughput ability into different logical groups. Each logical group is commanded to transmit on an upstream which has a burst profile set to effectively use the throughput ability of the cable modem. Some species monitor initial ranging bursts and separate CMs with inadequate power onto a lower throughput upstream. Some species monitor post registration data transmissions for various factors and subdivide groups into subgroups of overperformers and underperformers.

Claims (23)

1. A process for optimizing transmission speeds on a distributed transmission system which can support multiple upstream channels or logical channels simultaneously, comprising:

1) gathering data about each cable modem (CM) in a group of CMs coupled to a cable modem termination system (CMTS) through a distributed transmission system;

2) dividing said group of CMs up into logical groups based upon CM type and/or throughput ability;

3) creating an upstream channel or logical channel on said distributed transmission system for each logical group of CMs, each upstream channel or logical channel having transmission characteristics optimized for a particular logical group of CMs;

4) assigning the CMs in each logical group to the upstream channel or logical channel created for that logical group; and

5) monitoring the error rate of transmissions from each CM, and if the error rate of any CM becomes higher than an underperformance limit or lower than an overperformance limit, sending a message to said CM whose error rate has become too high or too low causing each said CM which is overperforming or underperforming to switch to an upstream channel with a burst profile which is compatible with the CM type and suitable for more efficient communications of digital data between said CMTS and said CM,

wherein step 1 comprises gathering data about each modem through an initial ranging process and a registration process,

and wherein step 2 comprises dividing CMs into logical groups by CM type as learned from said registration process with DOCSIS 1.0 modems in one logical group and DOCSIS 1.1 CMs in another logical group and DOCSIS 2.0 CMs in a third logical group operating in SCDMA mode only or ATDMA mode only.

2. The method of claim 1 , wherein the error rate is bit error rate.

3. The method of claim 1 , wherein the error rate is byte error rate.

4. The method of claim 1 , wherein the error rate is packet error rate.

5. An apparatus comprising:

a cable modem termination system (CMTS) configured to optimize transmission speeds on a distributed transmission system which can support multiple upstream channels or logical channels simultaneously, the CMTS implementing a process comprising:

1) gathering data about each cable modem (CM) in a group of CMs coupled to a cable modem termination system (CMTS) through a distributed transmission system;

2) dividing said group of CMs up into logical groups based upon CM type and/or throughput ability;

3) creating an upstream channel or logical channel on said distributed transmission system for each logical group of CMs each upstream channel or logical channel having transmission characteristics optimized for a particular logical group of CMs;

4) assigning the CMs in each logical group to the upstream channel or logical channel created for that logical group; and

5) monitoring the error rate of transmissions from each CM, and if the error rate of any CM becomes higher than an underperformance limit or lower than an overperformance limit, sending a message to said CM whose error rate has become too high or too low causing each said CM which is overperforming or underperforming to switch to an upstream channel with a burst profile which is compatible with the CM type and suitable for more efficient communications of digital data between said CMTS and said CM

wherein step 1 comprises gathering data about each CM through an initial ranging process and a registration process,

and wherein step 2 comprises dividing CMs into logical groups by CM type as learned from said registration process with DOCSIS 1.0 CMs in one logical group and DOCSIS 1.1 CMs in another logical group and DOCSIS 2.0 CMs in a third logical group operating in SCDMA mode only or ATDMA mode only.

6. The CMTS of claim 5 , wherein the error rate is bit error rate.

7. The CMTS of claim 5 , wherein the error rate is byte error rate.

8. The CMTS of claim 5 , wherein the error rate is packet error rate.

Assignments (15)
SECURITY INTEREST Recorded Apr 8, 2026
From: ARRIS ENTERPRISES LLC; RUCKUS IP HOLDINGS LLC
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 075476/0814 →
RELEASE OF SECURITY INTEREST AT REEL/FRAME 049905/0504 Recorded Dec 19, 2024
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: ARRIS ENTERPRISES LLC (F/K/A ARRIS ENTERPRISES, INC.); ARRIS TECHNOLOGY, INC.; ARRIS SOLUTIONS, INC.; COMMSCOPE, INC. OF NORTH CAROLINA; COMMSCOPE TECHNOLOGIES LLC; RUCKUS WIRELESS, LLC (F/K/A RUCKUS WIRELESS, INC.)
Reel/Frame 071477/0255 →
SECURITY INTEREST Recorded Dec 17, 2024
From: ARRIS ENTERPRISES LLC; COMMSCOPE TECHNOLOGIES LLC; COMMSCOPE INC., OF NORTH CAROLINA; OUTDOOR WIRELESS NETWORKS LLC; RUCKUS IP HOLDINGS LLC
To: APOLLO ADMINISTRATIVE AGENCY LLC
Reel/Frame 069889/0114 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2022
From: ARRIS TECHNOLOGY, INC.
To: ARRIS ENTERPRISES, INC.
Reel/Frame 060791/0583 →
SECURITY INTEREST Recorded Nov 19, 2021
From: ARRIS SOLUTIONS, INC.; ARRIS ENTERPRISES LLC; COMMSCOPE TECHNOLOGIES LLC; COMMSCOPE, INC. OF NORTH CAROLINA; RUCKUS WIRELESS, INC.
To: WILMINGTON TRUST
Reel/Frame 060752/0001 →
ABL SECURITY AGREEMENT Recorded Jul 3, 2019
From: COMMSCOPE, INC. OF NORTH CAROLINA; COMMSCOPE TECHNOLOGIES LLC; ARRIS ENTERPRISES LLC; ARRIS TECHNOLOGY, INC.; RUCKUS WIRELESS, INC.; ARRIS SOLUTIONS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 049892/0396 →
PATENT SECURITY AGREEMENT Recorded Jul 3, 2019
From: ARRIS ENTERPRISES LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 049820/0495 →
TERM LOAN SECURITY AGREEMENT Recorded Jul 3, 2019
From: COMMSCOPE, INC. OF NORTH CAROLINA; COMMSCOPE TECHNOLOGIES LLC; ARRIS ENTERPRISES LLC; ARRIS TECHNOLOGY, INC.; RUCKUS WIRELESS, INC.; ARRIS SOLUTIONS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 049905/0504 →
CHANGE OF NAME Recorded Jul 2, 2019
From: ARRIS ENTERPRISES, INC.
To: ARRIS ENTERPRISES LLC
Reel/Frame 049649/0062 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Apr 8, 2019
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: ARRIS GROUP, INC.; ARRIS ENTERPRISES, INC.; ARRIS SOLUTIONS, INC.; ARRIS KOREA, INC.; ARRIS HOLDINGS CORP. OF ILLINOIS, INC.; BIG BAND NETWORKS, INC.; TEXSCAN CORPORATION; POWER GUARD, INC.; 4HOME, INC.; ACADIA AIC, INC.; AEROCAST, INC.; BROADBUS TECHNOLOGIES, INC.; GENERAL INSTRUMENT CORPORATION; GENERAL INSTRUMENT AUTHORIZATION SERVICES, INC.; GENERAL INSTRUMENT INTERNATIONAL HOLDINGS, INC.; IMEDIA CORPORATION; JERROLD DC RADIO, INC.; LEAPSTONE SYSTEMS, INC.; MODULUS VIDEO, INC.; MOTOROLA WIRELINE NETWORKS, INC.; NETOPIA, INC.; NEXTLEVEL SYSTEMS (PUERTO RICO), INC.; QUANTUM BRIDGE COMMUNICATIONS, INC.; SETJAM, INC.; SUNUP DESIGN SYSTEMS, INC.; UCENTRIC SYSTEMS, INC.; GIC INTERNATIONAL HOLDCO LLC; GIC INTERNATIONAL CAPITAL LLC; CCE SOFTWARE LLC; THE GI REALTY TRUST 1996
Reel/Frame 048825/0294 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2015
From: ARRIS TECHNOLOGY, INC
To: ARRIS ENTERPRISES, INC.
Reel/Frame 037328/0341 →
MERGER AND CHANGE OF NAME Recorded Mar 10, 2015
From: GENERAL INSTRUMENT CORPORATION; GENERAL INSTRUMENT CORPORATION
To: ARRIS TECHNOLOGY, INC.
Reel/Frame 035176/0620 →
MERGER Recorded Dec 2, 2013
From: TERAYON COMMUNICATION SYSTEMS, INC.
To: GENERAL INSTRUMENT CORPORATION
Reel/Frame 031748/0095 →
SECURITY AGREEMENT Recorded May 28, 2013
From: ARRIS GROUP, INC.; ARRIS ENTERPRISES, INC.; ARRIS SOLUTIONS, INC.; ARRIS KOREA, INC.; ARRIS HOLDINGS CORP. OF ILLINOIS; BIGBAND NETWORKS, INC.; TEXSCAN CORPORATION; POWER GUARD, INC.; 4HOME, INC.; ACADIA AIC, INC.; AEROCAST, INC.; BROADBUS TECHNOLOGIES, INC.; GENERAL INSTRUMENT CORPORATION; GENERAL INSTRUMENT AUTHORIZATION SERVICES, INC.; GENERAL INSTRUMENT INTERNATIONAL HOLDINGS, INC.; IMEDIA CORPORATION; JERROLD DC RADIO, INC.; LEAPSTONE SYSTEMS, INC.; MODULUS VIDEO, INC.; MOTOROLA WIRELINE NETWORKS, INC.; NETOPIA, INC.; NEXTLEVEL SYSTEMS (PUERTO RICO), INC.; QUANTUM BRIDGE COMMUNICATIONS, INC.; SETJAM, INC.; SUNUP DESIGN SYSTEMS, INC.; UCENTRIC SYSTEMS, INC.; GIC INTERNATIONAL HOLDCO LLC; GIC INTERNATIONAL CAPITAL LLC; CCE SOFTWARE LLC; THE GI REALTY TRUST 1996
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 030498/0023 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2004
From: AZENKOT, YEHUDA; RAKIB, SELIM SHLOMO
To: TERAYON COMMUNICATION SYSTEMS, INC.
Reel/Frame 014385/0135 →