Method and apparatus for efficiently performing congestion control in mobile communication system network
AssigneeSamsung Electronics Co., Ltd.
InventorsAlexander Sayenko, Donggun Kim
Life of this patent
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Abstract
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention relates to a method and an apparatus for efficiently performing congestion control in a mobile communication system network.
Claims16
A method performed by a network apparatus, the method comprising:
- detecting a congestion;
- selecting a first internet protocol (IP) flow among a plurality of IP flows for a congestion control based on counter values of each of the plurality of IP flows;
- determining whether the congestion control is supported for the first IP flow based on a first downlink packet of the first IP flow;
- identifying a first uplink packet of a second IP flow in case that the congestion control is supported for the first IP flow;
- updating a congestion-related field of a header of the first uplink packet from a first value to a second value, wherein the congestion-related field of the header of the first uplink packet indicates a reduction of a transmission window related to the first IP flow;
- transmitting the first uplink packet including the congestion-related field with the second value;
- identifying whether a congestion window reduced flag is set to 1 in a second downlink packet of the first IP flow after transmitting the first uplink packet including the congestion-related field with the second value;
- and
- transmitting a second uplink packet including the congestion-related field with the second value, in case that the congestion window reduced flag is not set to 1 in the second downlink packet of the first IP flow.
A network apparatus comprising:
- a transceiver configured to transmit and receive a signal;
- and
- a controller configured to:
- detect a congestion,
- select a first internet protocol (IP) flow among a plurality of IP flows for a congestion control based on counter values of each of the plurality of IP flows,
- determine whether the congestion control is supported for the first IP flow based on a first downlink packet of the first IP flow,
- identify a first uplink packet of a second IP flow in case that the congestion control is supported for the first IP flow,
- update a congestion-related field of a header of the first uplink packet from a first value to a second value, wherein the congestion-related field of the header of the first uplink packet indicates a reduction of a transmission window related to the first IP flow,
- transmit the first uplink packet including the congestion-related field with the second value,
- identify whether a congestion window reduced flag is set to 1 in a second downlink packet of the first IP flow after transmitting the first uplink packet including the congestion-related field with the second value, and
- transmit a second uplink packet including the congestion-related field with the second value, in case that the congestion window reduced flag is not set to 1 in the second downlink packet of the first IP flow.
Dependencies are inferred from the claim text.