US 2026/0143538 A1Published application

Interoperability of communication devices

AssigneeMarvell Asia Pte Ltd

InventorsWhay Sing LEE, Lenin Kumar PATRA

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Abstract

In a communication network operating according to a communication protocol that defines a link establishment procedure having a training procedure, a first communication device performs the link establishment procedure with a second communication device. The first communication device negotiates one or more new parameter values for the link establishment procedure that are different than one or more mandated parameter values specified by the communication protocol. During the link establishment procedure, the first communication device uses the one or more new parameter values instead of using the one or more mandated parameter values specified by the communication protocol. The one or more new parameter values include at least one new initial PHY parameter value for starting the training procedure that is different as compared to at least one default initial PHY parameter value for starting the training procedure specified by the communication protocol.

Claims20

Dependent claims

A first communication device for use in a communication network operating according to a communication protocol, the communication protocol defining a link establishment procedure that includes a training procedure, wherein the communication protocol specifies mandated parameter values that are to be used for the link establishment procedure, the first communication device comprising:

physical layer (PHY) circuitry having a transceiver that is configured to transmit and receive via a communication link;
a negotiation controller configured to control the PHY circuitry to communicate with a second communication device via the communication link to negotiate one or more new parameter values for the link establishment procedure that are different than one or more mandated parameter values specified by the communication protocol, the one or more mandated parameter values including at least one default initial PHY parameter value for starting the training procedure of the link establishment procedure, and the one or more new parameter values including at least one new initial PHY parameter value for starting the training procedure of the link establishment procedure that is different as compared to the at least one default initial PHY parameter value;
and
a training controller that is configured to control the PHY circuitry, during the link establishment procedure, to use the one or more new parameter values instead of using the one or more mandated parameter values specified by the communication protocol, including using the at least one new initial PHY parameter value for starting the training procedure of the link establishment procedure instead of using the at least one default initial PHY parameter value.

1 more element

A link establishment method in a communication network operating according to a communication protocol, the communication protocol defining a link establishment procedure that includes a training procedure, wherein the communication protocol specifies mandated parameter values that are to be used for the link establishment procedure, the method comprising:

performing, by a first communication device, the link establishment procedure, including:
communicating, by the first communication device, with a second communication device via a communication link to negotiate one or more new parameter values for the link establishment procedure that are different than one or more mandated parameter values specified by the communication protocol, the one or more mandated parameter values including at least one default initial PHY parameter value for starting the training procedure of the link establishment procedure, and the one or more new parameter values including at least one new initial PHY parameter value for starting the training procedure of the link establishment procedure that is different as compared to the at least one default initial PHY parameter value;
and
during the link establishment procedure, using, by the first communication device, the one or more new parameter values instead of using the one or more mandated parameter values specified by the communication protocol, including using the at least one new initial PHY parameter value for starting the training procedure of the link establishment procedure instead of using the at least one default initial PHY parameter value.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 19/452,790Filed 19 Jan 2026
Priority: 2 May 2022
Published: 21 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 12/413
With decentralised control: with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
H04W 76/10
Connection management: connection setup
H04L 5/1438
Two-way operation using the same type of signal, i.e. duplex: negotiation of transmission parameters prior to communication
H04L 49/3054
Peripheral units, e.g. input or output ports: auto-negotiation, e.g. access control between switch gigabit interface connector [GBIC] and link

Family

Application63/337,251Us provisional application · filed 2 May 2022
Application18/142,574Continuation · filed 2 May 2023
Application19/452,790Continuation
US 12,532,364 B2Related patent
US 2023/0354445 A1Published application
US 2026/0143538 A1This patent

From the US filing history. Foreign family members aren’t listed.