The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2026
Filed:
Dec. 03, 2021
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A PDU ordering function (POF) restores the proper order of PDUs in a stream, at the Layer-2 or 3 level of a TSN or DetNet. The sequence number of the last PDU forwarded is stored, and compared to the sequence number of a newly received PDU. If the new PDU is an earlier or the 'next' PDU in the stream, it is forwarded and the value of the last PDU forwarded is updated. If the newly received PDU is two or more sequence numbers ahead of the last PDU forwarded, it is buffered. Other PDUs are received and processed, and the value of the last PDU forwarded is updated. When the buffered PDU is the next one to the last PDU forwarded, it is retrieved from the buffer and forwarded. To bound the total latency the POF can impose on aPDU stream, a predetermined maximum buffering time timer is started upon buffering the PDU. If the timer expires before the buffered PDU becomes “next” to the last PDU forwarded, it is nevertheless retrieved and forwarded.