32 results about "Explicit Congestion Notification" patented technology

Embodiments include methods, electronic device, storage medium, and computer program to implement a dedicated queue based on a user request. In one embodiment, a method comprises: receiving a first message to optimize one or more data flows based on a quality-of-service request for an end user; enabling a first queue dedicated to the one or more data flows sourced for the end user in the network node based on the first message; and upon a determination of congestion in the network, marking packets in the one or more data flows stored in the first queue as candidates to drop based on a queue size of the first queue, wherein the marking is to set explicit congestion notification bits of the packets.

The embodiment of the invention provides an explicit congestion notification marking method, a switch, a system and a storage medium, and the method comprises the steps: obtaining the exit queue length of the switch, determining the marking probability of a message according to a preset PID parameter, a preset exit queue reference length and the exit queue length, and performing explicit congestion notification ECN marking on the message according to the marking probability. According to the embodiment of the invention, the marking probability of the message is determined through the PID parameter, and ECN marking is carried out according to the marking probability, so that the message queue of the switch can be stabilized at a certain queue depth, invalid and excessive ECN marking is reduced, blind excessive speed increase or speed reduction is avoided, and the accuracy and timeliness of flow control marking are improved, thereby improving the network throughput and improving the flow control marking efficiency. The problem of network congestion easily caused by a many-to-one communication mode in related technologies is solved.

The present disclosure relates to a 5G or pre-5G communication system to be provided in order to support higher data transmission rates than 4G communication systems such as LTE. According to an embodiment of the present disclosure, a method performed by a session management function (SMF) entity in a communication system is provided, the method comprising the steps of: identifying that an explicit congestion notification (ECN) marking function for a low latency, low loss and scalable throughput (L4S) service is activated in a source radio access network (S-RAN) of a terminal but the ECN marking function for the L4S is not activated in a target RAN (T-RAN) of the terminal; and transmitting information requesting activation of the ECN marking function for the L4S to a user plane function (UPF) entity on the basis of identifying that the explicit congestion notification (ECN) marking function for the L4S service is activated in the S-RAN of a terminal but the ECN marking function for the L4S is not activated in the T-RAN of the terminal.

The invention discloses an information transmission method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the information transmission method comprises the steps that the terminal receives first information from the network side equipment, and the first information is used for indicating an explicit congestion notification ECN mark.

Systems, methods, and software are disclosed herein for allocating beamforming resources of a base station of a wireless communication network based on congestion notification which includes detecting Explicit Congestion Notification (ECN) data of data traffic of user equipment (UEs) in communication with a base station; determining that the ECN data comprising a congestion notification exceeds a threshold value; and determining an allocation of beamforming resources of the base station among the UEs based on determining that the ECN data comprising a congestion notification exceeding the threshold value.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, at a first modem and from a first device, one or more data packets. Based on an explicit congestion notification (ECN) capable transport (ECT) codepoint indication in respective header portions of the data packets, the UE may route the data packets from the first modem to two or more queues associated with a second modem of the UE. Based on receiving buffer and link state information associated with the second modem, the UE may perform a congestion indication procedure that is associated with congestion of a communication link associated with the UE. The UE may thereafter transmit, to a second device, packet data from the two or more queues associated with the second modem of the UE based on a respective priority associated with the two or more queues.

This electronic device may comprise: a memory for storing instructions and including one or more storage media; and at least one processor including processing circuitry. The instructions may, when executed individually or collectively by the at least one processor, control the electronic device to: identify whether a service being executed satisfies a specified quality of experience (QoE); on the basis of the QoE not being satisfied, identify a congestion experienced (CE) occurrence ratio of accurate explicit congestion notification (AccECN) feedback relative to the number of packets transmitted by executing low latency, low loss, and scalable throughput (L4S); identify an exceeding delay value relative to a roundtrip interaction delay required by the service; identify a delay state on the basis of the congestion experienced (CE) occurrence ratio of the accurate ECN feedback and the exceeding delay value; and perform an operation for mitigating delay on the basis of the identified delay state.

Provided in the embodiments of the present disclosure are an explicit congestion notification marking method, a switch, a system, and a storage medium. The method comprises: acquiring an egress queue length of a switch; determining a marking probability of a packet on the basis of a preset proportional-integral-derivative (PID) parameter, a preset egress queue reference length, and the egress queue length; and performing explicit congestion notification (ECN) marking on the packet on the basis of the marking probability.

A method, a network device, and a non-transitory computer-readable storage medium are described in relation to a low latency, low loss, and scalable throughput (L4S)-triggered prioritized connection service. The L4S-triggered prioritized connection service may enable an evolved packet data gateway (ePDG) to provision prioritized and non-prioritized tunnels with end devices via untrusted wireless local area networks. The prioritized tunnel may support L4S or another quality of service in which the ePDG may provide prioritized data forwarding. The end device may transmit a request that includes priority data.

A network packet processing device includes a hardware-accelerated forwarding circuit and a network processing unit (NPU). The hardware-accelerated forwarding circuit is used to receive a plurality of L4S packets from a network port and send the plurality of L4S packets to another network port through hardware-accelerated forwarding without intervention of a central processing unit (CPU). The NPU is used to perform ECN marking on at least a portion of the plurality of L4S packets.

The invention provides a self-adaptive granularity load balancing method and system for RoCE network AI flow. The method comprises the steps that a sending end initializes forwarding granularity of all flows into packet granularity and initializes path weight; the receiving end monitors the disorder degree of the stream, and sends an disorder notification packet to the sending end when the disorder degree exceeds a first threshold value; the sending end switches the target flow into the flow granularity and reduces the weight of the selected path according to the flow granularity; the sending end dynamically selects a path for the packet granularity flow based on the path weight and the explicit congestion notification mark; when the receiving end monitors that the flow granularity flow continuous sequence packet reaches a second threshold value, an out-of-order solution packet is sent to the sending end; and the sending end recovers the flow to packet granularity and improves the path weight according to the packet granularity. According to the invention, the forwarding granularity can be adaptively adjusted according to the network disorder degree, the disorder is controlled within the hardware tolerance while the high throughput is ensured, the transmission performance of the AI cluster in the RoCE network is effectively improved, the network equipment does not need to be modified, and the deployment is easy.

Use of a preferential resource, such as a Low Latency, Low Loss, and Scalable Throughput queue of a device, may be selectively enabled based on past resource-requesting behavior of a sending application. A characteristic, such as an Explicit Congestion Notification bit, of network traffic transmitted by a sending application is detected during a data traffic congestion condition at a receiving network node. If this characteristic indicates a request for processing via a preferential queue, then a prior network traffic transmission profile of the sending application may be identified, based on which it is determined whether the sending application has not, within a threshold time period, previously transmitted prior network traffic that indicated a prior request for the processing via the preferential queue. Accordingly, access to the preferential queue may be granted, or may be made more likely, for data packets of the current network traffic of the sending application.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate, and to a method performed by a non-3GPP interworking function (N3IWF) entity of a wireless communication system, the method comprising the steps of: receiving session management information from a session management function (SMF) entity via an access and mobility management function (AMF) entity, the session management information includes an explicit congestion notification (ECN) flag indication for supporting low latency, low loss, and scalable throughput (L4S) in non-3GPP access; determining a connection of an Internet Protocol Security (IPsec) sub-security association (SA) supporting a Quality of Service (QoS) flow of the L4S; and sending a message for requesting the IPsec sub-SA connection to the terminal.

A method, a network device, and a non-transitory computer-readable storage medium are described in relation to a transport congestion control notification service. The transport congestion control notification service may include providing congestion notification by a network device according to a schedule. The congestion notification may be implemented as explicit congestion notification bits included in packets. The schedule may govern the starting and stopping of the congestion notification. The schedule may be generated based on historical congestion states of relevance to the network device. The schedule may be generated by the network device or by an external device and provisioned at the network device.

A sending networking device includes one or more processors, and memory storing one or more software applications which, when executed by any combination of the one or more processors performs an operation. The operation includes determining whether an explicit congestion notification (ECN) is marked on an acknowledgement (ACK), determining whether a measured delay is less than a target delay, and upon determining that the ECN is not marked and that the measured delay is less than the target delay, proportionally increasing a transmission parameter based on a difference between the target delay and the measured delay.

The disclosure relates to a 5G communication system or a 6G communication system for providing higher data transmission rates than a previous 4G communication system, such as LTE. A method performed by a user plane function (UPF) entity in a wireless communication system according to the disclosure can include the steps of receiving N4 session information from a session management function (SMF) entity, the N4 session information including an explicit congestion notification (ECN) activation indicator and an ECN tuning parameter; identifying a QoS flow for which an ECN-related function activation is to be applied based on the ECN activation indicator; and performing data communication based on the ECN activation indicator and the ECN tuning parameter. Various other embodiments identified by the specification are possible.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. A method performed by a terminal according to an embodiment of the present disclosure may comprise the steps of: identifying first congestion information measured by a communication processor (CP); measuring a change amount of application processor (AP) information; acquiring, on the basis of the first congestion information and the change amount of the AP information, second congestion information on which compensation for the first congestion information has been performed; calculating an explicit congestion notification (ECN) marking probability by using the second congestion information; and configuring, according to the ECN marking probability, an ECN bit in a packet to be transmitted.

Acknowledgement messages for a link in a computing network are accessed. Round trip time (RTT) measurements for the link are accessed. In response to determining that none of the acknowledgement messages are Explicit Congestion Notification (ECN)-marked and none of the accessed RTT measurements exceeded a minimum expected latency threshold, it is determined that an end-to-end path of the link is not congested.

An acknowledgement message for a link in a computing network is accessed. Round-trip time (RTT) measurements for the link are accessed. In response to determining that no of the acknowledgement messages are marked as an explicit congestion notification (ECN) and no of the accessed RTT measurements exceed a minimum expected delay threshold, it is determined that the end-to-end path of the link is not congested.

A method performed by a first network entity (110) in a communication network (100) The method comprises receiving (210), from a third network entity (130) in the communication network (100), at least one first request for determining which traffic flow of at least one traffic flow (10a-d) is a traffic flow (10a) associated with a Low Latency Low Loss Scalable Throughput, L4S and / or an Explicit Congestion Notification, ECN, wherein the at least one traffic flow (10a-d) is occurring during an application traffic session, sending (220), to a second network entity (120) in the communication network (100), at least one second request based on the at least one first request. Further there are a second network entity (120) and third network entity (130) related methods, a related first network entity (110), a second network entity (120) and a third network entity (130).

The invention discloses a network parameter control method and a cluster, and the method comprises the steps: determining the task type of a model processing task operated in the cluster and the communication feature of the model processing task, and the task type of the model processing task belongs to one of a model reasoning task and a model training task; determining a data communication path of the model processing task in the cluster based on the communication characteristics of the model processing task; based on the data communication path of the model processing task, determining at least one target port responsible for transmitting task data of the model processing task from each switch of the cluster; determining a target explicit congestion notification waterline suitable for the target port based on the rated physical link bandwidth of the target port and the task type and the communication feature corresponding to the model processing task; and adjusting the explicit congestion notification waterline corresponding to the target port to the target explicit congestion notification waterline.

This application provides a method and apparatus for forwarding packets, relating to the field of communication technology. The method is applied to an ingress PE node and includes: receiving a first Internet Protocol (IP) packet, the first IP packet supporting Explicit Congestion Notification (ECN); determining a first Multiprotocol Label Switching (MPLS) packet based on the first IP packet, the first MPLS Network Action (MNA) in the first MPLS packet including a first ECN field; and forwarding the first MPLS packet. The method in this application embodiment can avoid conflicts between MPLS packets carrying ECN tags and the DiffServ domain space.

This central unit (CU) may comprise at least one processor. The at least one processor is configured to: transmit, to a radio link control (RLC) entity, a first message for requesting radio quality assistance information, according to a determination that an amount of downlink traffic stored in a buffer of a packet data convergence protocol (PDCP) entity of the CU exceeds a threshold value; determine, on the basis of receiving a second message including the radio quality assistance information from the RLC entity, whether congestion occurs in a downlink on the basis of the radio quality assistance information; and, according to a determination that the congestion occurs in the downlink, set an explicit congestion notification echo (ECE) flag in a transmission control protocol (TCP) header of uplink traffic, and then transmit the uplink traffic to a server.

The invention discloses an explicit congestion notification waterline value generation method and device and a medium, and the method comprises the steps: constructing an intelligent cloud engine platform based on a Spine-Leaf dual-interconnection architecture, and configuring to-be-monitored parameters; obtaining explicit congestion notification waterline values of the Spine equipment and the Leaf equipment through the intelligent cloud engine platform; when a network key link simulation fault instruction is received through the intelligent cloud engine platform, according to the explicit congestion notification waterline value, determining the steady-state receiving rate, the convergence time interval and the number of received packets in the convergence period; calculating a difference value between an ideal data receiving quantity and an actual data receiving quantity through the number of received packets in the convergence period, the convergence time interval and the steady-state receiving rate; and judging whether the difference value meets a preset difference value range or not, and taking the explicit congestion notification waterline value corresponding to the preset difference value range as a target explicit congestion notification waterline value. According to the method, the adaptability to different devices is improved.

The application discloses a kind of based on DPU's host congestion accurate mitigation method and device, the method includes: host monitoring agent is constructed in host side, is generated host congestion signal by reading the hardware counter of PCIe interface and memory subsystem pressure, and is passed to data processor DPU by shared memory channel;DPU processing engine receives host congestion signal, and the load factor of DPU local queue is combined to calculate hybrid congestion index;DPU classifies flow, and directly forwards through fast forwarding path to time delay sensitive stream, and through dynamic queue management to non time delay sensitive stream;Based on hybrid congestion index, DPU executes probabilistic packet loss policy to in-bound traffic sent to host, and executes explicit congestion notification marking strategy to out-bound traffic sent to network.The application utilizes the advantage of DPU, realizes the fast perception and differentiation control to host congestion, reduces packet loss under high load scenario and improves tail delay.

A packet transmission method includes: obtaining a target rate limitation policy and a target explicit congestion notification (ECN) parameter corresponding to the target port; when transmitting specified-type data in a target priority queue corresponding to the target port to a destination device, adding a congestion mark to the specified-type data based on the target ECN parameter, wherein the congestion mark is configured to allow the destination device to transmit first-class congestion notification packets (CNPs) to a source device; based on the target rate limitation policy, performing rate limitation on the first-class CNPs, and transmitting the first-class CNPs remaining after rate limitation to the source device; determining a target packet rate; and based on the target packet rate, generating second-class CNPs, and transmitting the second-class CNPs to the source device.

A device may include a processor configured to monitor a data flow, associated with a user equipment (UE) device, in a Radio Access Network (RAN). The processor may be further configured to detect a congestion condition for the monitored data flow associated with the UE device; generate an Explicit Congestion Notification (ECN) in response to detecting the congestion condition; and mark packets associated with the data flow with the generated ECN.

A sending networking device includes one or more processors, and memory storing one or more software applications which, when executed by any combination of the one or more processors performs an operation. The operation includes determining whether an explicit congestion notification (ECN) is marked on an acknowledgement (ACK), determining whether a measured delay is greater than a target delay, and upon determining that the ECN is not marked and that the measured delay is greater than the target delay, additively increasing a transmission parameter.

The present application belongs to the technical field of communications. Disclosed are an information transmission method and apparatus, and a terminal and a network-side device. The information transmission method in the embodiments of the present application comprises: a terminal receiving first information from a network-side device, wherein the first information is used for indicating an explicit congestion notification (ECN) mark.

The application provides a congestion control method, device, equipment and medium of a data center network. The method of the application is applied to a first node in a first intelligent algorithm cluster in a multi-intelligent algorithm cluster network, the first node is in communication connection with a second node, the second node is located in the first intelligent algorithm cluster or in a second intelligent algorithm cluster different from the first intelligent algorithm cluster, and the first node is used for transmitting target data to the second node. When an explicit congestion notification packet returned by the second node is detected, the traffic type of a target data flow currently congested is determined according to the explicit congestion notification packet, and when the traffic type is cross-intelligent algorithm cluster traffic, the congestion position of the target data flow is determined. The congestion degree and transmission progress of the target data flow are determined according to the information of the historical explicit congestion notification packet. According to the traffic type, the congestion position, the congestion degree and the transmission progress, the transmission rate of the target data flow is reduced. The application effectively solves the problems in the related art.