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US 8,477,807 B1Granted
Upstream ranging in communications devices
AssigneeARRIS Group, Inc.
InventorDerek Winters
Life of this patent
Estimating the term…
Abstract
Systems, methods, and apparatuses can provide improved ranging for communications devices. This improved ranging can include prioritizing an upstream ambiguity list and/or prioritizing visible upstream channel identifiers, and generating a hierarchical candidate list for use in initial ranging for a communications device.
Claims25
A computer-implemented method, comprising:
- identifying a downstream channel at a customer premise equipment device;
- receiving a list of upstream channels from a headend system on said downstream channel identified by the customer premise equipment device;
- randomizing said list of upstream channels at the customer premise equipment device;
- sorting the randomized list of upstream channels at the customer premise equipment device;
- creating a hierarchical candidate list at the customer premise equipment device based on said sorted list of upstream channels and one or more predefined channels comprising upstream channels not included in the list of upstream channels received from the headend system;
- and
- performing ranging on upstream channels at the customer premise equipment device in an order defined by the hierarchical candidate list until successfully ranging on one of the upstream channels.
4 more elements
One or more non-transitory computer-readable media having instructions stored thereon, the one or more computer readable media, when executed by a processor, cause the processor to perform operations comprising:
- identifying a downstream channel;
- receiving a list of upstream channels on said downstream channel;
- randomizing said list of upstream channels;
- sorting the randomized list of upstream channels based on channel size;
- creating a hierarchical candidate list by appending said sorted list of upstream channels after one or more predefined channels comprising both channels not included on the received list of upstream channels and channels included on the received list of upstream channels;
- and
- performing ranging on the upstream channels in an order defined by the hierarchical candidate list until successfully ranging on one of the upstream channels.
4 more elements
A system, comprising:
- input/output circuitry and a processor operable to identify a downstream channel and receive a list of upstream channels on said downstream channel;
- a data store operable to store computer program instructions and temporary storage for said processor;
- a processor operable execute said computer program instructions, the computer program instructions being operable to cause the processor to:
- randomize said list of upstream channels;
- sort said randomized list of upstream channels;
- generate a hierarchical candidate list by appending said sorted list of upstream channels after one or more predefined channels comprising channels not included on said list of upstream channels;
- and
- perform ranging on the upstream channels in conjunction with the input/output circuitry, the ranging being performed in an order defined by the hierarchical candidate list until successfully ranging on one of the upstream channels.
5 more elements
Dependencies are inferred from the claim text.