# US 12,771,457 B2 · Method and apparatus for signal conditioning of burst signal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,771,457 B2 - Document ID: US12771457B2 - Status: Granted - Kind: B2 - Application number: 18/477,999 - Filed: 2023-09-29 - Published: 2024-04-04 - Granted: 2026-10-20 - Earliest claimed: 2022-09-30 - Assignees: Nokia Solutions and Networks Oy - Applicants: Nokia Solutions and Networks Oy - Inventors: Michiel Verplaetse; Yannick Lefevre; Wouter Lanneer - Web page: https://patentgrep.com/patent/US12771457B2 ## CPC - H04B 10/616: {Details of the electronic signal processing in coherent optical receivers} - H04Q 11/0067: {Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring} - H04B: TRANSMISSION - H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W) ## Abstract In one embodiment, the apparatus includes at least one memory configured to store instructions; and at least one processor configured to execute the instructions and cause the apparatus to perform, receiving, by a receiver in an Optical Line Terminal, OLT, a burst of an upstream signal transmitted in burst mode, adjusting settings for an analog signal conditioning of the received upstream signal; performing the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided, obtaining coefficient(s) for a digital signal conditioning of the first compensated signal; performing the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided. ## Claims ### Claim 1 An apparatus, comprising: at least one memory configured to store instructions; and at least one processor configured to execute the instructions and cause the apparatus to perform, obtaining a timing information related to a receiving time of a burst of an upstream signal transmitted in burst mode; receiving, by a receiver in an Optical Line Terminal, OLT, the burst of the upstream signal transmitted in burst mode; and coordinating, based on the timing information, signal processing, the signal processing including, adjusting settings for an analog signal conditioning of the received upstream signal, performing the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided, obtaining at least one coefficient for a digital signal conditioning of the first compensated signal, and performing the digital signal conditioning of the first compensated signal based on the obtained at least one coefficient such that a second compensated signal is provided. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the analog and the digital signal conditioning comprises at least one of: signal swing conditioning, and signal offset conditioning. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the timing information is obtained from a reset signal. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the timing information is obtained from a signal detection circuitry. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: initializing the adjusting based on the timing information. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: initializing the obtaining of the at least one coefficient based on the timing information. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: determining whether the adjusting is completed; based on determining that the adjusting is completed, initializing the obtaining of the at least one coefficient. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the apparatus is further caused to perform: determining whether the adjusting is completed based on the timing information and a duration related to time required for the adjusting. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein the apparatus is further caused to perform: determining whether the adjusting is completed based on a signal detection circuitry. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: obtaining the at least one coefficient for the digital signal conditioning by training based on the first compensated signal. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: obtaining the at least one coefficient for the digital signal conditioning by loading pre-trained coefficient(s). ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the apparatus is further caused to perform: performing decoding based on the second compensated signal. ### Claim 13 A method, comprising: obtaining a timing information related to a receiving time of a burst of an upstream signal transmitted in burst mode; receiving, by a receiver in an Optical Line Terminal, OLT, the burst of the upstream signal transmitted in burst mode; and coordinating, based on the timing information, signal processing, the signal processing including, adjusting settings for an analog signal conditioning of the received upstream signal, performing the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided, obtaining coefficient(s) for a digital signal conditioning of the first compensated signal, and performing the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided. ### Claim 14 A non-transitory computer-readable medium storing instructions, which when executed by a processor, cause an apparatus including the processor to: obtain a timing information related to a receiving time of a burst of an upstream signal transmitted in burst mode; receive, by a receiver in an Optical Line Terminal, OLT, the burst of the upstream signal transmitted in burst mode; and coordinating, based on the timing information, signal processing, the signal processing including, adjust settings for an analog signal conditioning of the received upstream signal, perform the analog signal conditioning of the received upstream signal based on the adjusted settings such that a first compensated signal is provided, obtain coefficient(s) for a digital signal conditioning of the first compensated signal, and perform the digital signal conditioning of the first compensated signal based on the obtained coefficient(s) such that a second compensated signal is provided.