# US 10,374,897 B2 · Technologies for autonegotiating 10G and 1G serial communications over copper cable > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,897 B2 - Document ID: US10374897B2 - Status: Granted - Kind: B2 - Application number: 16/044,122 - Filed: 2018-07-24 - Published: 2018-11-15 - Granted: 2019-08-06 - Earliest claimed: 2014-12-03 - Assignees: Intel Corporation - Applicants: Intel Corporation - Inventors: Kent C. Lusted; Adee O. Ran - Web page: https://patentgrep.com/patent/US10374897B2 ## CPC - H04L 41/0886: {Fully automatic configuration} - H04L 49/3054: {Auto-negotiation, e.g. access control between switch gigabit interface connector [GBIC] and link} - H04L 69/24: Negotiation of communication capabilities - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Technologies for autonegotiation of communications operational modes over copper cable include a network port logic having a communication link coupled to a remote link partner. The network port logic may start an autonegotiation protocol upon reset, when the link is broken, or upon manual renegotiation. The network port logic transmits an autonegotiation page to the remote link partner that indicates single-lane communications ability over copper cable. The network port logic receives an autonegotiation page from the link partner indicating single-lane communications ability over copper cable. If the network port logic and link partner have a common single-lane communication ability, the link may be activated. The autonegotiation pages may be base pages or next pages. The single-lane communication ability may be indicated by one or more bits of the autonegotation pages. The link may be established at 1 gigabit or 10 gigabits per second. Other embodiments are described and claimed. ## Claims ### Claim 1 A network interface circuit for link technology autonegotiation, the network interface circuit comprising: a network port logic comprising an autonegotiation logic, wherein the autonegotiation logic is to: transmit a first autonegotiation page to a remote link partner, wherein the first autonegotiation page is indicative of a first operational mode, wherein the first operational mode includes single-lane communication over copper cable, and wherein the first autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; receive a second autonegotiation page from the remote link partner, wherein the second autonegotiation page is indicative of the first operational mode, and wherein the second autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; and activate a communication link with the remote link partner using the first operational mode over a copper cable medium in response to receipt of the second autonegotiation page. ### Claim 2 (depends on 1) The network interface circuit of claim 1, wherein the first operational mode comprises a 10-gigabit single-lane communication using the copper cable medium. ### Claim 3 (depends on 1) The network interface circuit of claim 1, wherein the first operational mode comprises a 1-gigabit single-lane communication using the copper cable medium. ### Claim 4 (depends on 1) The network interface circuit of claim 1, wherein: the first autonegotiation page further comprises a message code field indicative of a first unique identifier; and the second autonegotiation page further comprises a message code field indicative of the first unique identifier. ### Claim 5 (depends on 1) The network interface circuit of claim 1, wherein the autonegotiation logic is further to: transmit a third autonegotiation page to the remote link partner, wherein the third autonegotiation page comprises a message code field indicative of an organizationally unique identifier tagged message code and an unformatted code indicative of an organizationally unique identifier; and receive a fourth autonegotiation page from the remote link partner, wherein the fourth autonegotiation page comprises a message code field indicative of the organizationally unique identifier tagged message code and an unformatted code indicative of the organizationally unique identifier. ### Claim 6 (depends on 1) The network interface circuit of claim 1, wherein the autonegotiation logic is further to: transmit a first base page to the remote link partner, wherein the first base page is indicative of a second operational mode, wherein the second operational mode includes multi-lane communication over copper cable; and receive a second base page from the remote link partner, wherein the second base page is indicative of the second operational mode. ### Claim 7 (depends on 6) The network interface circuit of claim 6, wherein the second operational mode comprises 40-gigabit multi-lane communication using the copper cable medium. ### Claim 8 (depends on 6) The network interface circuit of claim 6, wherein the second operational mode comprises 100-gigabit multi-lane communication using the copper cable medium. ### Claim 9 (depends on 6) The network interface circuit of claim 6, wherein the autonegotiation logic is further to: select the first operational mode in response to receipt of the second autonegotiation page and in response to receipt of the second base page; wherein to activate the communication link comprises to activate the communication link in response to selection of the first operational mode. ### Claim 10 A method for link technology autonegotiation, the method comprising: transmitting, by a network port logic, a first autonegotiation page to a remote link partner, wherein the first autonegotiation page is indicative of a first operational mode, wherein the first operational mode includes single-lane communication over copper cable, and wherein the first autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; receiving, by the network port logic, a second autonegotiation page from the remote link partner, wherein the second autonegotiation page is indicative of the first operational mode, and wherein the second autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; and activating, by the network port logic, a communication link with the remote link partner using the first operational mode over a copper cable medium in response to receiving the second autonegotiation page. ### Claim 11 (depends on 10) The method of claim 10, wherein the first operational mode comprises a 10-gigabit single-lane communication using the copper cable medium. ### Claim 12 (depends on 10) The method of claim 10, wherein the first operational mode comprises a 1-gigabit single-lane communication using the copper cable medium. ### Claim 13 (depends on 10) The method of claim 10, further comprising: transmitting, by the network port logic, a first base page to the remote link partner, wherein the first base page is indicative of a second operational mode, wherein the second operational mode includes multi-lane communication over copper cable; and receiving, by the network port logic, a second base page from the remote link partner, wherein the second base page is indicative of the second operational mode. ### Claim 14 (depends on 13) The method of claim 13, further comprising: selecting, by the network port logic, the first operational mode in response to receiving the second autonegotiation page and in response to receiving the second base page; wherein activating the communication link comprises activating the communication link in response to selecting the first operational mode. ### Claim 15 One or more non-transitory, computer-readable storage media comprising a plurality of instructions that in response to being executed cause a computing device to: transmit a first autonegotiation page to a remote link partner, wherein the first autonegotiation page is indicative of a first operational mode, wherein the first operational mode includes single-lane communication over copper cable, and wherein the first autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; receive a second autonegotiation page from the remote link partner, wherein the second autonegotiation page is indicative of the first operational mode, and wherein the second autonegotiation page comprises a next page that includes a technology bit that is indicative of the first operational mode; and activate a communication link with the remote link partner using the first operational mode over a copper cable medium in response to transmitting the first autonegotiation page and receiving the second autonegotiation page. ### Claim 16 (depends on 15) The one or more non-transitory, computer-readable storage media of claim 15, wherein the first operational mode comprises a 10-gigabit single-lane communication using the copper cable medium. ### Claim 17 (depends on 15) The one or more non-transitory, computer-readable storage media of claim 15, wherein the first operational mode comprises a 1-gigabit single-lane communication using the copper cable medium. ### Claim 18 (depends on 15) The one or more non-transitory, computer-readable storage media of claim 15, wherein: the first autonegotiation page further comprises a message code field indicative of a first unique identifier; and the second autonegotiation page further comprises a message code field indicative of the first unique identifier. ### Claim 19 (depends on 15) The one or more non-transitory, computer-readable storage media of claim 15, further comprising a plurality of instructions that in response to being executed cause the computing device to: transmit a first base page to the remote link partner, wherein the first base page is indicative of a second operational mode, wherein the second operational mode includes multi-lane communication over copper cable; and receive a second base page from the remote link partner, wherein the second base page is indicative of the second operational mode. ### Claim 20 (depends on 19) The one or more non-transitory, computer-readable storage media of claim 19, further comprising a plurality of instructions that in response to being executed cause the computing device to: select the first operational mode in response to receiving the second autonegotiation page and in response to receiving the second base page; wherein to activate the communication link comprises to activate the communication link in response to selecting the first operational mode.