Patent ID: 9408109
Filing Date: 2016-08-02
CPC Classification: H04L,H04W

Claim Text:
1. A method for congestion control in a network node of a communication network utilizing a distributed queue system for transmission of data units, wherein said network node has a priority queue (PQ) for protocol data units (PDUs) in accordance with a retransmission protocol, the method comprising: detecting a condition indicative of a congestion; and, in response thereto, manipulating a PDU in the PQ, wherein the retransmission protocol is a persistent retransmission protocol and wherein said manipulating the PDU comprises manipulating the content of the PDU, said manipulating the content of the PDU comprising altering one or more bits of a service data unit (SDU) payload of the PDU while leaving a header of the persistent retransmission protocol included in the PDU intact.