Comprehensive system design to address the needs for virtual segmentation of the coaxial cable plant

Patent metadata

Field	Value
Publication number	US-12126397-B2
Application number	US-202318312411-A
Country	US
Kind code	B2
Filing date	May 4, 2023
Priority date	Feb 4, 2019
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

Abstract

Methods and devices for dynamically designated first and second subsets of a plurality of frequency channels as upstream and downstream channels, respectively, for performing wired communications using virtual segmentation between a network controller and an endpoint device, performing virtual segmentation to service an endpoint device. Communications are performed between the network controller and the endpoint device through a wired communication medium using the upstream and downstream channels. The first subset and second subsets of the plurality of channels are designated as upstream channels and downstream channels, respectively, based at least in part on one or both of upstream and downstream channel demand and channel availability.

First claim

What is claimed is:

1. An apparatus, comprising:
a multi-parallel processor system configured to cause a virtual repeater station, located between an endpoint device and a cable headend, to:
designate a plurality of channels within a range of frequencies, wherein each of the plurality of channels comprises a separate respective sub-band of frequency within the range of frequencies;
designate a first subset of the plurality of channels as upstream channels and a second subset of the plurality of channels as downstream channels for virtual segmentation, wherein the upstream channels and the downstream channels are operated by different processors of the multi-parallel processor system; and
perform communications between a network controller and the endpoint device through a coaxial cable by utilizing the plurality of channels.

2. The apparatus of claim 1 , wherein the multi-parallel processor system is further configured to cause the virtual repeater station to:
dynamically modify processor allocation for operating the upstream channels and the downstream channels to accommodate current channel demand.

3. The apparatus of claim 1 , further comprising:
a plurality of data memory routers interspersed with the processors of the multi-parallel processor system.

4. The apparatus of claim 1 ,
wherein the separate sub-bands of frequency are selected to occur at frequencies above a highest frequency utilized by Data Over Cable Service Interface Specification (DOCSIS) plus a guard interval.

5. The apparatus of claim 1 ,
wherein the first subset of the plurality of channels are designated as upstream channels and the second subset of the plurality of channels are designated as downstream channels based at least in part on upstream and downstream channel demand.

6. The apparatus of claim 1 ,
wherein one or more of a code rate and a modulation scheme for one or more of the plurality of channels is selected based on an attenuation level associated with the sub-band of frequency of the respective channel.

7. The apparatus of claim 1 ,
wherein designating the first subset of the plurality of channels as upstream channels and the second subset of the plurality of channels as downstream channels is performed further based at least in part on upstream and downstream channel availability.

8. The apparatus of claim 1 , wherein the processor is further configured to cause the virtual repeater station to:
dynamically re-designate a new first subset of the plurality of channels as upstream channels and a new second subset of the plurality of channels as downstream channels based at least in part on one or more of:
current traffic conditions; and
a signal-to-interference-plus-noise-ratio (SINR) associated with the communications between the network controller and the endpoint device,
wherein said dynamically re-designating the new first subset and the new second subset is performed periodically with a predetermined periodicity.

9. The apparatus of claim 1 , wherein the processor is further configured to cause the virtual repeater station to:
designate a third subset of the plurality of channels as exclusion and/or guard bands.

10. A non-transitory computer-readable memory medium comprising program instructions that are executable by a multi-parallel processor system to cause a virtual repeater station, located between an endpoint device and a cable headend, to:
designate a plurality of channels within a range of frequencies, wherein each of the plurality of channels comprises a separate respective sub-band of frequency within the range of frequencies;
designate a first subset of the plurality of channels as upstream channels and a second subset of the plurality of channels as downstream channels for virtual segmentation, wherein the upstream channels and the downstream channels are operated by different processors of the multi-parallel processor system; and
perform communications between a network controller and the endpoint device through a coaxial cable by utilizing the plurality of channels.

11. The non-transitory computer-readable memory medium of claim 10 , wherein the program instructions are further executable by the multi-parallel processor system to cause the virtual repeater station to:
dynamically modify processor allocation for operating the upstream channels and the downstream channels to accommodate current channel demand.

12. The non-transitory computer-readable memory medium of claim 10 ,
wherein the separate sub-bands of frequency are selected to occur at frequencies above a highest frequency utilized by Data Over Cable Service Interface Specification (DOCSIS) plus a guard interval.

13. The non-transitory computer-readable memory medium of claim 10 ,
wherein performing communications between the network controller and the endpoint device comprises performing analog-to-digital conversion followed by digital-to-analog conversion for the upstream channels and the downstream channels.

14. The non-transitory computer-readable memory medium of claim 10 ,
wherein designating the first subset of the plurality of channels as upstream channels and the second subset of the plurality of channels as downstream channels is performed further based at least in part on upstream and downstream channel availability.

15. The non-transitory computer-readable memory medium of claim 10 , wherein the program instructions are further executable to cause the virtual repeater station to:
dynamically re-designate a new first subset of the plurality of channels as upstream channels and a new second subset of the plurality of channels as downstream channels based at least in part on one or more of:
current traffic conditions; and
a signal-to-interference-plus-noise-ratio (SINR) associated with the communications between the network controller and the endpoint device,
wherein said dynamically re-designating the new first subset and the new second subset is performed on a per-frame basis.

16. The non-transitory computer-readable memory medium of claim 10 , wherein the program instructions are further executable to cause the virtual repeater station to:
designate a third subset of the plurality of channels as exclusion and/or guard bands.

17. A virtual repeater station, comprising:
a plurality of non-transitory computer-readable memory media; and
a plurality of processors of a multi-parallel processor system and interspersed with the plurality of non-transitory computer-readable memory media, wherein the virtual repeater station is located between an endpoint device and a cable headend, and wherein the virtual repeater station is configured to:
designate a plurality of channels within a range of frequencies, wherein each of the plurality of channels comprises a separate respective sub-band of frequency within the range of frequencies;
designate a first subset of the plurality of channels as upstream channels and a second subset of the plurality of channels as downstream channels for virtual segmentation, wherein the upstream channels and the downstream channels are operated by different processors of the plurality of processors of the multi-parallel processor system; and
perform communications between a network controller and the endpoint device through a coaxial cable by utilizing the plurality of channels.

18. The virtual repeater station of claim 17 , wherein the virtual repeater station is further configured to:
dynamically modify processor allocation for operating the upstream channels and the downstream channels to accommodate current chan

Assignees

• Coherent Logix Inc

Inventors

• Shelby Kevin A
• Doerr Michael B

Classifications

• H04L47/70

  Admission control; Resource allocation · CPC title

• H04B3/04 Primary

  Control of transmission; Equalising · CPC title

• H04L12/2801 Primary

  Broadband local area networks · CPC title

• H04N21/2385

  Channel allocation (H04N21/266 takes precedence); Bandwidth allocation (H04N21/24 takes precedence {; allocation of channels according to the instantaneous demands of the users in time-division multiplex systems H04J3/1682; admission control, resource allocation in open networks H04L12/5692; arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896; negotiating bandwidth in wireless networks H04W28/16}) · CPC title

• H04N21/2221

  being a cable television head-end (CATV in broadcast systems H04H20/78) · CPC title