74 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.

Provided are a method, system, and apparatus for adjusting the bitrate for video streaming may be provided. The method may include: determining whether there is network congestion for a packet based on whether a filtered cell quality indicator provided from a Media Access Control (MAC) Scheduler is lower than a cell quality indicator threshold value, based on whether a scheduling queue delay of a User Equipment (UE) is greater than a queue delay threshold value, or based on UE Assistance Information (UAI) reported by a user equipment (UE); based on a determination that there is network congestion: setting an explicit congestion notification (ECN) bit in an IP packet header and setting the congestion state of a user IP to true; sending the packet; and applying adaptive bitrate to adjust a quality of a video stream based on the congestion state

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.

Methods and apparatus for providing L4S support with regard to non-3GPP untrusted / trusted accesses in which a user equipment (UE) is enabled to monitor for uplink and / or downlink congestion with regard to L4S uplink data traffic flows at the UE, detect congestion, and perform explicit congestion notification (ECN) markings or communicate congestion information to perform ECN marking to another device are described. In some embodiments, the UE device indicates detected congestion, at the UE, in an uplink (UL) traffic flow via performing ECN marking of an innermost IP header ECN field. In some other embodiments, the UE device communicates detected congestion information, via a GRE message to a core network interface device, which communicates, via GTP-U, the detected congestion information to a UPF, which then uses the received UE detected congestion information to performs ECN marking in the innermost IP header of an uplink data packet.

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.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an internet protocol (IP) packet. The UE may identify a quality of service (QoS) flow associated with the IP packet. The UE may detect an uplink explicit congestion notification (ECN) status associated with the QoS flow based at least in part on header information associated with the IP packet. The UE may transmit an indication of the uplink ECN status to a core network entity. The UE may perform one of: marking the IP packet with uplink ECN information based at least in part on uplink ECN criteria, or transmitting, to a radio access network (RAN) network entity, an indication that at least one of the uplink ECN criteria is met or that none of the uplink ECN criteria is met. Numerous other aspects are described.

The invention discloses a speed regulation method and a communication device, relates to the field of communication, and can reduce task response time under an end-cloud collaborative architecture. The method comprises the following steps: receiving first information from access network equipment, acquiring a first message of terminal equipment, and sending a second message to an application server; wherein the first information is used for indicating that a first QoS demand corresponding to a first QoS flow needs to be adjusted to a second QoS demand, the first QoS demand and the second QoS demand correspond to different data transmission rates, and the second message carries second information; the second information is determined according to the first information, a first number of messages experiencing congestion in the first message, a first number of messages without congestion and a number of messages not supporting explicit congestion notification (ECN) feedback, and the second information is used for determining a first congestion proportion when the first QoS flow is transmitted according to the first QoS demand; the first congestion ratio is used for adjusting the data transmission rate of the first QoS flow.

Methods and apparatus for providing L4S support with regard to non-3GPP untrusted / trusted accesses in which a core network interface device, e.g., N3IWF or a TNGF, is used are described. The core network interface device monitors for downlink and / or uplink congestion with regard to L4S downlink and / or uplink data traffic flows, detects congestion and perform explicit congestion notification (ECN) markings or communicates congestion information used in performing ECN marking to another device. In some embodiments, the core network interface device indicates detected congestion, at the core network interface device, in a DL traffic flow via performing ECN marking of the innermost IP header ECN field. In some other embodiments, the core network interface device communicates detected congestion information to other devices. Sometimes the congestion information is communicated via a GTP-U header to a UPF, which performs ECN marking based on the received non-3GPP congestion information.

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 explicit congestion notification dynamic optimization method, device and equipment based on a long short-term memory network and a storage medium, and relates to the technical field of network optimization, and the method comprises the steps: obtaining real-time network flow data; generating a dynamic congestion threshold value through the long-short-term memory network and the real-time network flow data; and displaying a congestion notification mark based on the dynamic congestion threshold. The invention provides a method for dynamically optimizing explicit congestion notification parameters through combination of a long-short term memory network and explicit congestion notification. According to the invention, the long-term dependency relationship of real-time network flow data is captured through the long-short-term memory network, high-precision prediction of the network congestion condition is realized, and the network congestion threshold is dynamically adjusted, so that the display congestion notification marking based on the dynamic congestion threshold effectively adapts to a complex and changeable network environment, and the network congestion notification marking efficiency is improved. And the dynamic self-adaptive capability is improved.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an internet protocol (IP) packet. The UE may identify a quality of service (QOS) flow associated with the IP packet. The UE may detect an uplink explicit congestion notification (ECN) status associated with the QoS flow based at least in part on header information associated with the IP packet. The UE may transmit an indication of the uplink ECN status to a core network entity. The UE may perform one of: marking the IP packet with uplink ECN information based at least in part on uplink ECN criteria, or transmitting, to a radio access network (RAN) network entity, an indication that at least one of the uplink ECN criteria is met or that none of the uplink ECN criteria is met. Numerous other aspects are described.

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 discloses a threshold configuration information determination method and device, equipment, a medium and a product, and relates to the technical field of computers. The method comprises the following steps: when a network state is changed, acquiring current queue state information, congestion control parameters and flow related time of forwarding equipment; determining a cache space of the forwarding equipment according to the traffic related time and the congestion control parameter, and determining a priority traffic control reverse touch threshold according to the cache space and the congestion control parameter; determining a queue traffic category of the forwarding equipment according to the queue state information, and determining an explicit congestion notification parameter template and a preset parameter adjustment rule associated with the queue traffic category; iterating the initial parameter in the explicit congestion notification parameter template according to a preset parameter adjustment rule to determine a target explicit congestion notification parameter; and taking the priority flow control reverse touch pressure threshold and the target explicit congestion notification parameter as target threshold configuration information to realize dynamic adjustment of the target threshold configuration information.

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.

Methods and apparatus for providing L4S support with regard to non-3GPP untrusted / trusted accesses in which a core network interface device, e.g., N3IWF or a TNGF, is used are described. The core network interface device monitors for downlink and / or uplink congestion with regard to L4S downlink and / or uplink data traffic flows, detects congestion and perform explicit congestion notification (ECN) markings or communicates congestion information used in performing ECN marking to another device. In some embodiments, the core network interface device indicates detected congestion, at the core network interface device, in a DL traffic flow via performing ECN marking of the innermost IP header ECN field. In some other embodiments, the core network interface device communicates detected congestion information to other devices. Sometimes the congestion information is communicated via a GTP-U header to a UPF, which performs ECN marking based on the received non-3GPP congestion information.

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 present disclosure relates to a 5G or 6G communication system for providing a higher data transmission rate 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 present disclosure may comprise the steps of: receiving, from a session management function (SMF) entity, N4 session information including an explicit congestion notification (ECN) activation indicator and an ECN tuning parameter; identifying a QoS flow to which activation of an ECN-related function is to be applied on the basis of the ECN activation indicator; and performing data communication on the basis of the ECN activation indicator and the ECN tuning parameter. Various other embodiments identified through the specification are possible.