59 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 apparatus may be a wireless device or user equipment (UE) configured to obtain a first plurality of generated packets including information related to the L4S service and process, based on the information related to the L4S service, the first plurality of generated packets for transmission by the UE. The apparatus may be a network device configured to some examples, a network device may be configured to include, in each received UL packet of a first plurality of received uplink (UL) packets, explicit congestion notification (ECN) information related to radio network delays and output, for a core network, the first plurality of received UL packets including the ECN information related to the L4S service.

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.

The apparatus may be a wireless device or user equipment (UE) configured to obtain a first plurality of generated packets including information related to the L4S service and process, based on the information related to the L4S service, the first plurality of generated packets for transmission by the UE. The apparatus may be a network device configured to some examples, a network device may be configured to include, in each received UL packet of a first plurality of received uplink (UL) packets, explicit congestion notification (ECN) information related to radio network delays and output, for a core network, the first plurality of received UL packets including the ECN information related to the L4S service.

According to an embodiment, a method performed by a device of a central unit (CU) comprises an operation of receiving, through a transceiver, a message indicating a transmission state of downlink data from a distributed unit (DU) connected to the CU. The method comprises an operation of determining, on the basis of the message, a probability that an explicit congestion notification (ECN) field is displayed as a specified value indicating congestion. The method comprises an operation of marking an ECN field of at least one packet from among packets, which are transmitted from the CU to the DU, with the specified value, according to the probability.

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.

The invention discloses an intelligent network congestion control method based on frequency domain feature analysis and dynamic weight adjustment, which comprises the following steps: acquiring network round-trip time RTT and queue length, and calculating a jitter value; dFT conversion is performed on the jitter value into a frequency domain, and then a high-frequency energy ratio is calculated. And constructing a state vector, and performing real-time network state estimation on the state vector based on a Kalman filtering model to obtain a state estimation value of the network. According to the high-frequency energy ratio, the weight of the RTT, the queue length and the frequency domain feature is dynamically adjusted, and then the parameters of the PID controller are adaptively adjusted according to the weight. And finally, a PID control signal generated by the PID controller is converted into a sending rate adjustment action or an explicit congestion notification, so that network congestion is inhibited in real time. According to the method, the performance of the data center network in a high-load and complex network environment can be remarkably improved, the delay is reduced, the throughput is improved, data packet loss is avoided, and the self-adaptive capability of the network is enhanced.

In some implementations, a first core network device may transmit, to a second core network device may, a host responsiveness monitoring request, wherein the host responsiveness monitoring request indicates at least one host responsiveness parameter associated with a host device that is to be monitored, and wherein the at least one host responsiveness parameter is associated with the host device adapting a transmission rate associated with one or more service data flows in response to receiving one or more packets marked with an explicit congestion notification. The first core network device may receive, from the second host device, a host responsiveness monitoring report indicating data associated with the at least one host responsiveness parameter associated with the host device.

The invention provides a traffic forwarding method and device, equipment, a medium and a program product, and relates to the field of computer networks and communication, and the method comprises the steps: obtaining a data packet corresponding to a traffic forwarding request in response to the traffic forwarding request; detecting whether network congestion exists; if it is determined that network congestion exists, target next-hop equipment is determined based on a pre-established explicit congestion notification neighbor list; adding an explicit congestion notification mark for the data packet; sending the data packet added with the explicit congestion notification mark to a target next hop device; according to the method provided by the invention, the technical effects of improving the traffic forwarding efficiency and reducing the forwarding delay are achieved.

Systems and methods are provided to control network traffic. Preferential network traffic may be identified and prioritized based on indications from service providers. Data caps may be monitored for preferential traffic and actions may be taken when these caps are reached. Additionally, during network sessions, data may be selectively routed through preferential or non-preferential queues based on identified characteristics. Preferential resources, such as Low Latency, Low Loss, and Scalable Throughput (L4S) queues, may be allocated based on the past behavior of sending applications. Explicit Congestion Notification bits may help determine if a sending application should be granted access to preferential queues during congestion. Efficient and prioritized handling of network traffic, and optimized performance and resource allocation are provided.

The invention provides an end-network cooperative rate control method based on explicit congestion notification, a medium and equipment, and belongs to the field of RDMA rate control. According to the control method, the buffer area of the RLC layer of the gNB serves as a congestion detection point, the queue length of the RLC layer is detected, whether congestion response needs to be made or not is determined according to the queue length, and the congestion response is that a CNP message is actively generated on the gNB and returned to the RH. The RH slows down when receiving the CNP message; the RH updates the congestion feedback coefficient alpha when not receiving the CNP message for a long time; the RH is provided with two counters ntime and nbytes, and the RH is accelerated when any one of the two counters is updated. According to the method, the operation of returning the CNP is directly carried out on the network node sensing the network congestion point, so that a wireless link with long propagation time delay is avoided; and the link data volume is always kept to be up and down fluctuation of the bandwidth delay product, and the congestion influence is reduced to the minimum.

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.

A method and system for fast RDMA congestion control, relating to the field of network technology, includes: when a network node device receives a target explicit congestion notification message (ECN), generating a target congestion notification message (CNP) based on the source IP, destination IP, and destination queue number (QP) or source QP number in the target ECN message and sending it to a source server; when the source server determines that the target CNP message is a destination CNP message based on the notification type field in the target CNP message, if a target source QP number corresponding to the source IP, destination IP, and destination QP number in the target CNP message is found in a preset source-destination QP mapping table, the destination QP number in the destination CNP message is replaced with the target source QP number to form a new target CNP message, and the original congestion control speed adjustment algorithm is executed based on the new target CNP message. This application can improve the efficiency of congestion notification while reducing resource overhead and improving versatility.

The disclosure relates to a 5G or 6G communication method for supporting a higher data transmission rate, the method comprising transmitting a request message including first information indicating a protocol data unit set importance (PSI) based service data unit (SDU) discard for an uplink (UL) or second information indicating an explicit congestion notification (ECN) marking or a congestion information reporting and receiving a request acknowledging message as a response to the request message.

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.

A method for wireless communication at a first network node and related apparatus are provided. In the method, the first network node communicates with a user equipment (UE) based on dual connectivity with a second network node. The first network node further receives a configuration for explicit congestion notification (ECN) marking at one or more of a quality of service (QoS) flow level or a data radio bearer (DRB) level; and provides, to the second network node, ECN marking information. The ECN marking information is based on the configuration.

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.

Systems and methods for using multiple CE (Congestion Experienced) flags in both FECN (Forward Explicit Congestion Notification) and BECN (Backward Explicit Congestion Notification) in a high-performance computing environment. An exemplary method can provide a first subnet that includes a plurality of switches, a plurality of host channel adapters, and a plurality of end nodes. The method can receive an ingress packet from a remote end node at an end node attached to a host channel adapter, where the ingress packet traverses at least a portion of the first subnet before being received at the end node. The method can, upon receiving the ingress packet, send a response message from the end node attached to the host channel adapter to the remote end node, the response message indicating that the ingress packet experienced congestion during traversing the at least a portion of the first subnet.

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.